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National Emission Standards for Hazardous Air Pollutants: Proposed Standards for Hazardous Air Pollutants for Hazardous Waste Combustors (Phase I Final Replacement Standards and Phase II) [[pp. 21347-21385]]

 [Federal Register: April 20, 2004 (Volume 69, Number 76)]
[Proposed Rules]
[Page 21347-21385]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr20ap04-28]
 
[[pp. 21347-21385]]
National Emission Standards for Hazardous Air Pollutants: 
Proposed Standards for Hazardous Air Pollutants for Hazardous Waste 
Combustors (Phase I Final Replacement Standards and Phase II)

[[Continued from page 21346]]

[[Page 21347]]

standards \285\). Consequently, we propose to require that cement kilns 
comply with the bag leak detection requirements (as proposed to be 
revised) under Sec.  63.1206(c)(7)(ii).\286\ We note that, although 
triboelectric detectors are generally used as bag leak detectors given 
their ability to detect very low loadings of particulate matter, cement 
kilns may use the transmissometers they currently use for opacity 
monitoring provided that the transmissometer is sensitive enough to 
detect subtle increases in particulate matter loading over normal (not 
performance test) loadings.
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    \285\ Because controlling particulate matter also controls 
semivolatile and low volatile metals (and dioxin/furan if you use 
activated carbon injection), exceeding the particulate matter 
loadings achieved during the performance test is also evidence of 
failure to ensure compliance with the emission standards for those 
pollutants.
    \286\ Because the proposed bag leak detection requirements are 
more stringent than the opacity standard, exempting cement kilns 
from the New Source Performance Standards for particulate matter and 
opacity under Sec.  60.60 continues to be appropriate. See 
Sec. Sec.  63.1204(h) and 63.1220(h).
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    Finally, we request comment on whether it is practicable to 
establish the alarm set-point for the back leak detection system based 
on the detector response achieved during the performance test rather 
than as recommended in the Agency's guidance document.\287\ The 
guidance document recommends that you establish the alarm set-point at 
a level that is twice the detector response achieved during bag 
cleaning. Although establishing the set-point at this level would avoid 
frequent exceedances due to normal bag cleaning, we are concerned that 
it may not be low enough to detect gradual degradation in fabric filter 
performance that, for example, can be caused by pinholes in the bags. 
Moreover, establishing the set-point at a detector response that is 
twice the response achieved during bag cleaning may not be low enough 
to require you to take corrective measures if particulate matter 
loadings increase above the levels achieved during the performance 
test, and thus at loadings that may indicate an exceedance of the 
particulate matter emission standard. To avoid alarms caused by bag 
cleaning cycles, the alarm set-point would be established as the 
average detector response of the test run averages during the 
particulate matter performance test, and would be established as a 6-
hour rolling average updated each hour with a one-hour block average. 
This is the time that could be required to conduct three runs of a 
particulate matter performance test. The one-hour block average would 
be the average of the detector responses over each 15-minute block.
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    \287\ USEPA, ``Fabric Filter Bag Leak Detection Guidance,'' 
September 1997.
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3. What Is the Rationale for Proposing to Revise the Compliance 
Requirements for Electrostatic Precipitators and Ionizing Wet Scrubbers?
    We propose a two-tiered approach to ensure performance of 
electrostatic precipitators and ionizing wet scrubbers: (1) Use of a 
particulate matter continuous emissions detector for process monitoring 
to signal when you must take corrective measures to address maintenance 
or other factors causing relative or absolute mass particulate matter 
loadings to be higher than the levels achieved during the performance 
test; or (2) use of site-specific operating parameter limits. You could 
choose to comply with either tier.
    a. How Would Tier I Work? Under Tier I, you would use a particulate 
matter continuous emissions detector for process monitoring to signal 
when you must take corrective measures to address maintenance or other 
factors causing relative or absolute mass particulate matter loadings 
to be higher than the levels achieved during the performance test. You 
would establish an alarm set-point as the average detector response 
achieved during the particulate matter emissions performance test. The 
limit would be applied as a 6-hour rolling average updated each hour 
with a one-hour block average to correspond to the time it could take 
to conduct three runs of a performance test. The one-hour block average 
would be the average of the detector responses over each 15-minute block.
    If you exceed the alarm set-point, you must immediately take the 
corrective measures you specify in your operation and maintenance plan 
to bring the response below the set-point. To ensure that you take both 
corrective and proactive measures to minimize the frequency and 
duration of exceedances, you would be required to operate and maintain 
the electrostatic precipitator and ionizing wet scrubber to ensure that 
the alarm set-point is not exceeded more than 5 percent of the 
operating time during a 6-month period.\288\ This is consistent with 
the proposed requirement to limit the period of time that a fabric 
filter may be operating under conditions of poor performance. If you 
exceed the alarm set-point more than 5 percent of the time during a 6-
month period, you would be required to notify the delegated regulatory. 
This notification would alert the regulatory authority of the excessive 
exceedances so that they may take corrective measures, such as 
requiring you to revise the operation and maintenance plan.
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    \288\ Periods of time when the combustor is operating but the 
bag leak detection system is malfunctioning must be considered 
exceedances of the set-point.
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    You may use any detector as a particulate matter continuous monitor 
provided that the detector response correlates with relative or 
absolute particulate matter mass emissions and that it can detect small 
changes in particulate matter loadings.\289\ You would include in the 
performance test plan a description of the particulate matter detector 
you select and information documenting that the detector response 
correlates with relative or absolute particulate matter loadings and 
that the detector can detect small changes in particulate matter 
loadings above the levels anticipated during the comprehensive 
performance test. For example, if you anticipate to achieve a 
particulate matter emission level of 0.010 gr/dscf during the 
comprehensive performance test, your detector should be able to 
distinguish between particulate matter loadings of 0.010 gr/dscf and 
0.011 gr/dscf.
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    \289\ Please note that, for the purpose of process monitoring 
proposed here, you need not correlate the particulate matter 
detector to particulate matter emission concentrations.
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    b. How Would Tier II Work? Under Tier II, you would comply with 
site-specific operating parameter limits you establish under Sec.  
63.1209(m)(1)(iv). As currently required, the operating limits would be 
linked to the automatic waste feed cutoff system. Exceedance of an 
operating limit would be a violation and is evidence of failure to 
ensure compliance with the particulate matter, semivolatile metal, and 
low volatile metal emission standards.

IV. Other Proposed Compliance Revisions

A. What Is the Proposed Clarification to the Public Notice Requirement 
for Approved Test Plans?

    We are proposing in today's notice to add clarifying language to 
the section 1207(e)(2) public notification requirement for approved 
performance test and CMS performance evaluation test plans. The Agency 
believes that adequate public involvement is an essential element to 
the continuing and successful management of hazardous waste. Providing 
opportunities for timely and adequate public notice is necessary to 
fully inform nearby communities of a source's plans to initiate 
important waste management

[[Page 21348]]

activities. In 1995, we expanded the RCRA public participation 
requirements for hazardous waste combustion sources to require that the 
State Director issue a public notice prior to a source conducting a 
RCRA trial burn emission test. See 60 FR 63417, 40 CFR 270.62(b)(6) and 
40 CFR 270.66(d)(3). The purpose of this notification requirement was 
to inform the public of an upcoming trial burn should an individual be 
interested in reviewing the results of the test. When we promulgated 
the Phase I hazardous waste combustion NESHAP in 1999, we included a 
similar requirement in subpart EEE for the same general purpose. 
Section 1207(e)(2) of subpart EEE requires that sources issue a public 
notice announcing the approval of site-specific performance test plans 
and CMS performance evaluation test plans and provide the location 
where the plans will be made available to the public for review. We 
neglected, however, to include direction regarding how and when sources 
should notify the public, what the notification should contain, or 
where and for how long the test plans should be made available. As a 
result, we are proposing to add clarifying language to the section 
1207(e)(2) public notification requirement. We are using the RCRA trial 
burn notification requirements as a foundation for the proposed 
clarifications.
1. How Should Sources Notify the Public?
    The source must make a reasonable effort to provide adequate 
notification of the approval of their site-specific performance test 
and CMS performance evaluation test plans. Because this notification is 
intended for informational purposes only, we are proposing that sources 
use their facility/public mailing list. We expect that by the time a 
source receives approval of its subpart EEE test plans, a facility/
public mailing list already would have been developed in response to 
the source's RCRA and CAA permitting activities. As such, we are 
proposing that sources use the facility/public mailing list developed 
under 40 CFR 70.7(h)(1), 71.11(d)(3)(i)(E) and 124.10(c)(1)(ix), for 
purposes of this notification. Sources may voluntarily choose to use 
other mechanisms in addition to a distribution to the facility/public 
mailing list, if previous experience has shown that such additional 
mechanisms are necessary to reach all interested segments of the 
community. For example, sources may consider using press releases, 
advertisements, visible signs, and outreach to local community, 
professional, and interest groups in addition to the required 
distribution to the facility/public mailing list.
2. When Should Sources Notify the Public of Approved Test Plans?
    The existing regulations require that sources issue a public notice 
after the Administrator has approved the site-specific performance test 
and CMS performance evaluation test plans. It is important to remember 
that the purpose of this notification is similar to that required under 
RCRA for trial burn tests. See 60 FR 63417, 40 CFR 270.62(b)(6) and 40 
CFR 270.66(d)(3). The notification is intended to provide information 
to the public regarding the upcoming performance test. It is not 
intended to solicit comment on the performance test plan. We considered 
proposing that the notification occur within 30 days of the source's 
receipt of test plan approval. However, we chose not to proceed with 
this option because we were concerned that the notification would not 
be as meaningful to the public if too much time elapses between the 
test plan approval notification and the actual initiation of the 
performance test. In order to provide the public with adequate notice 
of the upcoming test and a reasonable period of time to review the 
approved plans prior to the test, we are proposing that the source 
issue its notice after test plan approval, but no later than 60 days 
prior to conducting the test. We believe that this also will allow the 
source sufficient time to prepare its public notice and corresponds to 
the 40 CFR 63.1207(e)(1)(i)(B) requirement for a source to notify the 
Administrator of its intention to initiate the test.
3. What Should the Notification Include?
    Similar to the public involvement requirements for RCRA trial burn 
tests, we are proposing that the notification contain the following 
information:
    (1) The name and telephone number of the source's contact person;
    (2) The name and telephone number of the regulatory agency's 
contact person;
    (3) The location where the approved performance test and CMS 
performance evaluation test plans and any necessary supporting 
documentation can be reviewed and copied;
    (4) The time period for which the test plans will be available for 
public review, and;
    (5) An expected time period for commencement and completion of the 
performance test and CMS performance evaluation test.
4. Where Should the Plans Be Made Available and for How Long?
    The site-specific performance test and CMS performance evaluation 
test plans must be made available at an unrestricted location which is 
accessible to the public during reasonable hours and provides a means 
for the public to obtain copies of the plans if needed. To provide for 
adequate time for the public to review the test plans, we are proposing 
that the plans be made available for a total of 60 days, beginning on 
the date that the source issues its public notice.

B. What Is the Proposed Clarification to the Public Notice Requirement 
for the Petition To Waive a Performance Test?

    Sources that petition the Administrator for an extension of time to 
conduct a performance test (in other words, obtain a performance test 
waiver), are required under section 1207(e)(3)(iv) to notify the public 
of their petition. Although the regulatory language does provide some 
direction regarding how the source may notify the public (e.g., using a 
public mailing list), it does not provide any direction regarding when 
this notice must be issued or what it must contain. As a result, we are 
proposing in today's notice to add clarifying language to the Section 
1207(e)(3)(iv) public notice requirement.
1. When Should Sources Notify the Public of a Petition To Waive a 
Performance Test?
    We are proposing that a source notify the public of a petition to 
waive a performance test at the same time that the source submits its 
petition to the Administrator. Although not explicitly stated in 
section 1207(e)(3)(iv), this was our original intent. In the July 3, 
2001, preamble to the subpart EEE proposed technical amendments, we 
provided a time line of the waiver petitioning process for an initial 
Comprehensive Performance Test.\290\ In that time line, we indicated 
that the submittal of the petition and the public notification should 
occur at the same time.
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    \290\ It should be noted that the petition for waiver of a 
performance test applies to both the initial test and all subsequent 
tests. See 40 CFR 1207(e)(3).
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2. What Should the Notification Include?
    The notification of a petition to waive a performance test is an 
informational notification. As such, we are proposing that it include 
the same level of information as that provided by a source for the 
notification of an approved test plan:

[[Page 21349]]

    (1) The name and telephone number of the source's contact person;
    (2) The name and telephone number of the regulatory agency's 
contact person;
    (3) The date the source submitted its site-specific performance 
test plan and CMS performance evaluation test plans; and
    (4) The length of time requested for the waiver.

Part Four: Impacts of the Proposed Rule

I. What Are the Air Impacts?

    Table 1 of this preamble shows the emissions reductions achieved by 
the proposed rule for all existing hazardous waste combustor sources. 
For Phase I sources--incinerators, cement kilns, and lightweight 
aggregate kilns--the emission reductions represent the difference in 
emissions between sources controlled to the proposed standards and 
estimated emissions when complying with the interim MACT standards 
promulgated on February 13, 2002. For Phase II sources--industrial/
commercial/institutional boilers and process heaters and hydrochloric 
acid production facilities--the reductions represent the difference in 
emissions between the proposed standards and the current baseline of 
control provided by 40 CFR part 266, subpart H.
    Nationwide baseline HAP emissions from hazardous waste combustors 
are estimated to be approximately 13,000 tons per year at the current 
level of control. Today's proposed standards would reduce emissions of 
hazardous air pollutants and particulate matter by approximately 3,300 
tons per year.
    Nationwide emissions of dioxin/furans from all hazardous waste 
combustors will be reduced by 4.7 grams TEQ per year. Emissions of HAP 
metals from all hazardous waste combustors will be reduced by 23 tons 
per year, including one ton per year of mercury. We estimate that 
particulate matter itself, a surrogate for HAP metals will be reduced 
by over 1,700 tons per year. Finally, emissions of hydrogen chloride 
and chlorine gas from all hazardous waste combustors will reduced by 
nearly 1,500 tons and over 100 tons per year, respectfully.\291\ A 
discussion of the emission estimates methodology and results is 
presented in ``Draft Technical Support Document for HWC MACT 
Replacement Standards, Volume V: Emission Estimates and Engineering 
Costs'' (Chapter 3) in the docket for today's proposal.
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    \291\ We are, however, proposing to establish alternative risk-
based standards, pursuant to CAA section 112(d)(4), which could be 
elected by the source in lieu of the MACT emission standards for 
total chlorine. The emission limits would be based on national 
exposure standards that ensure protection of public health with an 
ample margin of safety. See Part Two, Section XIII for additional 
details.If we were to adopt alternative risk-based standards, then 
the national annual emissions reductions for total chlorine are 
overstated.

   Table 1.--Nationwide Annual Emissions Reductions of HAPs and Other
                               Pollutants
------------------------------------------------------------------------
                                                           Estimated
                                                            emission
                      Pollutant                         reductions (tons
                                                         per year) \1\
------------------------------------------------------------------------
Dioxin/furans........................................               0.3
Mercury..............................................               0.93
Cadmium..............................................               0.50
Lead.................................................               3.30
Arsenic..............................................               1.27
Beryllium............................................               0.31
Chromium.............................................               8.97
Antimony.............................................               1.18
Cobalt...............................................               0.42
Nickel...............................................               1.57
Selenium.............................................               0.28
Manganese............................................               4.50
Hydrogen Chloride....................................            1470
Chlorine Gas.........................................             107
Particulate Matter...................................           1727
------------------------------------------------------------------------
\1\ Dioxin/furan emissions reductions and reductions expressed as grams
  TEQ.

II. What Are the Water and Solid Waste Impacts?

    We estimate that water usage would increase by 4.8 billion gallons 
per year if the proposed MACT standards were adopted. In addition to 
the increased water usage, an additional 4.6 billion gallons per year 
of wastewater would be produced. We estimate the additional solid waste 
that would need to be treated as a result of the proposed standards to 
be 10,400 tons per year. The costs associated with these hazardous 
waste treatment/disposal and water requirements are accounted for in 
the national annualized compliance cost estimates. A discussion of the 
methodology used to estimate impacts is presented in ``Draft Technical 
Support Document for HWC MACT Replacement Standards, Volume V: Emission 
Estimates and Engineering Costs' (Chapters 4 and 5) that is available 
in the docket.

III. What Are the Energy Impacts?

    We estimate an increase of approximately 133 million kilowatt hours 
(kWh) in national annual energy usage as a result of the proposed 
standards. The increase results from the electricity required to 
operate air pollution control devices installed to meet the proposed 
standards, such as baghouses and wet scrubbers.

IV. What Are the Control Costs?

    Control costs, as presented in this section, refer only to 
engineering, operation, and maintenance costs associated with unit/
system upgrades necessary to meet the proposed replacement standards. 
These costs do not incorporate any market-based adjustments. All costs 
presented in this section are annualized estimates in 2002 dollars.
    We estimate there are a total of 276 sources \292\ that may be 
subject to requirements of the proposed rule. Liquid and solid fuel 
boilers represent approximately 43 percent of this total, followed by 
on-site incinerators at 33 percent, and cement and lightweight 
aggregate kilns at 12 percent. Commercial incinerators and hydrochloric 
acid production furnaces make up the remaining 12 percent of the total.
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    \292\ For purposes of this discussion, a source is defined as 
the air pollution control system associated with the hazardous waste 
combustion unit(s). A source may contain one or more combustion 
units, and a facility may operate one or more sources.
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    Total national engineering costs for the proposed standards are 
estimated to range from $57.7 million to $77.9 million per year. The 
low end of this range reflects total upgrade costs excluding controls 
to meet the total chlorine standard.\293\ All Phase II sources combined 
represent about 66 percent or 80 percent of this total, depending upon 
section 112(d)(4) scenario. The average cost per source is expected to 
be highest for lightweight aggregate kilns and solid fuel boilers, 
ranging from $329,000 to $400,000 and $217,000 to $283,000, 
respectively. Average liquid fuel boiler costs range from $378,000 to 
$419,000 per system. Hydrochloric acid production furnaces were found 
to have average system costs of about $200,000 under both section 
112(d)(4) scenarios. On-site incinerators and commercial incinerators 
were found to generally have the lowest average cost ranges. Average 
annualized engineering costs for on-site incinerators are estimated to 
range from $16,300 to $139,000 per source, while average annual per 
source engineering costs for commercial incinerators are estimated to 
range from $67,000 to $247,000. For all Phase I sources (140 sources; 
commercial incinerators, on-site incinerators, cement kilns, and

[[Page 21350]]

lightweight aggregate kilns), average annualized engineering costs are 
estimated to range from $76,000 to $184,000 per source. The combined 
Phase II sources (136 sources; solid and liquid fuel-fired boilers and 
hydrochloric acid production furnaces) had average annualized 
engineering costs ranging from $341,000 to $380,000 per source. Across 
all sectors covered by today's proposal (Phase I and Phase II sources), 
average annualized costs were found to range from $209,000 to $282,000 
per source.
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    \293\ We are proposing using section 112(d)(4) of the Clean Air 
Act to establish risk-based standards for total chlorine for 
hazardous waste combustors (except for hydrochloric acid production 
furnaces). The low-end of this cost range assumes all facilities 
emit total chlorine levels below risk-based levels of concern. Under 
this scenario, no total chlorine controls are assumed to necessary.
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    Engineering compliance (control) costs have also been assessed on a 
per ton of waste burned basis. Captive energy recovery sources 
(includes solid and liquid fuel-fired boilers, and hydrochloric acid 
production furnaces), burning a total of 1,001,500 tons of hazardous 
waste per year, are projected to experience the highest average 
incremental costs, ranging from $46 to $52 per ton. Commercial energy 
recovery sources (cement kilns and LWAKs), burning approximately 
1,093,800 tons per year, may see incremental control costs ranging from 
$7.50 to $8.50 per ton. Captive (on-site) and commercial incinerators 
burn an estimated 1,010,600 tons and 452,200 tons per year, 
respectively. These sources are estimated to experience average 
incremental engineering costs ranging from $1.50 to $12.70 per ton for 
captive and $2.20 to $8.20 per ton for commercial sources.
    The aggregate control costs presented in this section do not 
reflect the anticipated real world cost burden on the economy. Any 
market disruption, such as the implementation of hazardous waste MACT 
or risk-based standards will cause a short-tem disequilibrium in the 
hazardous waste burning market. Following the implementation of the 
replacement standards, market adjustments will occur in a natural 
economic process designed to reach a new market equilibrium. Actual 
cost impacts to society are more accurately measured by taking into 
account market adjustments. These costs are commonly termed Social 
Costs, and are generally less than total engineering costs due to cost 
efficiencies implemented during the market adjustment process. Social 
Costs theoretically represent the total real world costs of all goods 
and services society must give up in order to gain the added protection 
to human health and the environment. Social Costs are presented in Part 
VIII of this Section.

V. Can We Achieve the Goals of the Proposed Rule in a Less Costly Manner?

    Section 1(b)(3) of Executive Order 12866 instructs Executive Branch 
Agencies to consider and assess available alternatives to direct 
regulation prior to making a determination for regulation. This 
regulatory determination assessment should be considered, ``to the 
extent permitted by law, and where applicable.'' The ultimate purpose 
of the regulatory determination assessment is to ensure that the most 
efficient tool, regulation, or other type of action is applied in 
meeting the targeted objective(s). Requirements for MACT standards 
under the Clean Air Act, as mandated by Congress, have compelled us to 
select today's regulatory approach. Furthermore, we are under legal 
obligation to meet the targeted objectives of today's proposal through 
a regulatory action. As a result, alternatives to direct regulatory 
action were not evaluated.
    In addition to the statutory and legal mandates necessitating 
today's proposed rulemaking, we believe that federal regulation is the 
most efficient approach for helping to correct market failures leading 
to the negative environmental externalities resulting from the 
combustion of hazardous waste. The complex nature of the pollutants, 
waste feeds, waste generators, and the diverse nature of the combustion 
market would limit the effectiveness of a non-regulatory approach such 
as taxes, fees, or an educational-outreach program.
    The hazardous waste combustion industry operates in a dynamic 
market. Several combustion facilities and systems have closed or 
consolidated over the past several years and this trend is likely to 
continue. These closures and consolidations may lead to reduced air 
pollution, in the aggregate, from hazardous waste facilities. However, 
the ongoing demand for hazardous waste combustion services will 
ultimately result in a steady equilibrium as the market adjusts over 
the long-term. We therefore expect that air pollution problems from 
these facilities, and the corresponding threats to human health and 
ecological receptors, will continue if a regulatory action was not 
implemented.
    We believe that the market has generally failed to correct the air 
pollution problems resulting from the combustion of hazardous wastes 
for several reasons. First, there exists no natural market incentive 
for hazardous waste combustion facilities to incur additional costs 
implementing control measures. This occurs because the individuals and 
entities who bear the negative human health and ecological impacts 
associated with these actions have no direct control over waste burning 
decisions. This environmental externality occurs because the private 
industry costs of combustion do not fully reflect the human health and 
environmental costs of hazardous waste combustion. Second, the parties 
injured by the combusted pollutants are not likely to have the 
resources or technological expertise to seek compensation from the 
damaging entity (combustion source) through legal or other means.\294\ 
Finally, emissions from hazardous waste combustion facilities directly 
affect a ``public good,'' the air. Improved air quality benefits human 
health and the environment. The absence of government intervention, 
therefore, will perpetuate a market that fails to fully internalize key 
negative externalities, resulting in a sub-optimal quantity and quality 
of public goods, such as air.
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    \294\ Some economists consider this a failure of full and proper 
enforcement of property rights.
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    We have assessed several regulatory options designed to mitigate 
the unacceptable levels of risk to human health and the environment 
resulting from the combustion of hazardous waste in the targeted units. 
We believe, based on available data, that our preferred regulatory 
approach,\295\ as presented in today's proposed rule, is the most cost-
efficient method for reducing the level of several hazardous air 
pollutants. These include: dioxin and furan, mercury, semivolatile and 
low volatile metals, and total chlorine emissions (i.e., hydrogen 
chloride and chlorine). Carbon monoxide, hydrocarbons, and particulate 
matter will also be reduced.
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    \295\ Including our proposal to apply section 112(d)(4) to 
establish risk-based standards for total chlorine for all sources, 
except hydrochloric acid production furnaces.
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    We evaluated seven alternative methodologies in the development of 
today's proposed approach. These were: system removal efficiency plus 
feed control, straight emission-based, modified emission-based, 
exclusive technology approach, simultaneous achievability, using the 
CAA section 112(d)(4) to establish risk-based standards for total 
chlorine, and beyond-the-floor. Numerous different combinations of 
these methodologies were assessed. Selection of the Agency preferred 
approach was based, in part on methodological clarity, implementation 
simplicity, cost and economic impacts, stakeholder input, and necessary 
protectiveness to human health and the environment.

[[Page 21351]]

VI. What Are the Economic Impacts?

    Various market adjustments (i.e., economic impacts) are expected in 
response to the changes in hazardous waste combustion costs anticipated 
as a result of the replacement standards, as proposed. Economic impacts 
may be measured through several factors. This section presents 
estimated economic impacts relative to market exits, waste 
reallocations, and employment impacts. Economic impacts presented in 
this section are distinct from social costs, which correspond only to 
the estimated monetary value of market disturbances.

A. Market Exit Estimates

    The hazardous waste combustion industry operates in a dynamic 
market, with systems entering and exiting the market on a routine 
basis. Our analysis defines ``market exit'' as ceasing to burn 
hazardous waste. We have projected post-rule hazardous waste combustion 
system market exits based on economic feasibility only. Market exit 
estimates are derived from a breakeven analysis designed to determine 
system viability. This analysis is subject to several assumptions, 
including: engineering cost data on the baseline costs of waste 
burning, cost estimates for pollution control devices, prices for 
combustion services, and assumptions about the waste quantities burned 
at these facilities. It is important to note that, for most sectors, 
exiting the hazardous waste combustion market is not equivalent to 
closing a plant. (Actual plant closure would only be expected in the 
case of an exit from the hazardous waste combustion market of a 
commercial incinerator closing all its systems.)
    Under the Agency's proposed approach, we estimate there may be 
anywhere from 51 to 58 systems (sources) that stop burning hazardous 
waste. This represents anywhere from 18 percent to 21 percent of the 
total number of systems affected by the rule. The range is based on the 
inclusion or exclusion of total chlorine controls.\296\ At the high-end 
of this range, onsite incinerators represent about 55 percent of the 
total number of market exits. Liquid and solid fuel boilers (includes 
process heaters) account for 41 percent, and commercial incinerators 
account for the remaining. No cement kilns, lightweight aggregate 
kilns, or hydrochloric acid production furnaces are projected to exit 
the market as a result of the rule. Market exits are estimated to 
change only slightly under the alternative regulatory options.
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    \296\ Even though we are proposing to allow sources (except 
hydrochloric acid production furnaces) to invoke section 112(d)(4) 
in lieu of MACT chlorine control requirements, we have not attempted 
to estimate the following: (1) The total number of sources that may 
elect to implement this provision, and, (2) what level of control 
may be necessary following a section 112(d)(4) risk-based 
determination, since this would vary on a site-by-site basis.
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B. Quantity of Waste Reallocated

    Some combustion systems (sources) may no longer be able to cover 
their hazardous waste burning costs as a result of rule requirements, 
as proposed. These sources are expected to divert or reroute their 
wastes to alternative burners.\297\ For multiple system facilities, 
this diversion may include on-site (non-commercial) waste consolidation 
among fewer systems at the same facility. A certain portion of this 
waste may also be reallocated to waste management alternatives (e.g., 
solvent reclamation). Combustion, however, is likely to remain the 
lowest cost option. Thus, we expect that the vast majority of 
reallocated waste will continue to be managed at combustion facilities.
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    \297\ This analysis includes the cost of waste transport to 
alternative combustion sources, burning fees, and purchase of 
alternative fuels (if appropriate).
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    Our economic model indicates that, in response to today's rule, 
approximately 87,500 to 120,900 tons of hazardous waste may be 
reallocated, representing up to 3.4 percent of the total 1999 estimated 
quantity of hazardous waste burned at all sources. This estimate 
includes on-site consolidations and off-site diversions. Off-site 
diversions alone represent no more than 1.5 percent of the total waste 
burned. About 56 percent to 65 percent of the total reallocated waste 
quantity is expected to be consolidated among fewer systems at the same 
non-commercial facility. Commercial incinerators and commercial energy 
recovery (cement kilns and lightweight aggregate kilns) facilities are 
projected to receive all hazardous waste that is rerouted off-site. 
Onsite incinerators and boilers are the primary source of all off-site 
diverted waste. Based on the high estimate for total waste reallocated 
(120,900 tons), commercial incinerators and cement kilns are projected 
to receive 37 percent and 7 percent, respectively. The remainder, as 
mentioned above, is projected to be consolidated on-site. Currently, 
there is more than adequate capacity to accommodate all off-site waste 
diversions.

C. Employment Impacts

    Today's rule is likely to cause employment shifts across all of the 
hazardous waste combustion sectors. These shifts may occur as specific 
combustion facilities find it no longer economically feasible to keep 
all of their systems running, or to stay in the hazardous waste market 
at all. When this occurs, workers at these locations may lose their 
jobs or experience forced relocations. At the same time, the rule may 
result in employment gains, as new purchases of pollution control 
equipment stimulate additional hiring in the pollution control 
manufacturing sector, and as additional staff are required at selected 
combustion facilities to accommodate reallocated waste and/or various 
compliance activities.
1. Employment Impacts--Dislocations (losses)
    Primary employment dislocations (losses) in the combustion industry 
are likely to occur when combustion systems consolidate the waste they 
are burning into fewer systems or when a facility exits the hazardous 
waste combustion market altogether. Operation and maintenance labor 
hours are expected to be reduced for each system that stops burning 
hazardous waste. For each facility that completely exits the market, 
employment losses will likely also include supervisory and 
administrative labor.
    Total incremental employment dislocations potentially resulting 
from the proposed replacement standards are estimated to range from 308 
to 387 full-time-equivalent (FTE) jobs. Depending upon the scenario, 
on-site incinerators and boilers are responsible for anywhere from 
about 85 to 100 percent all potential job dislocations. Their 
significant share of the losses is a function of both the large number 
of systems affected, and the number of expected exits within these sectors.
2. Employment Impacts--Gains
    In addition to employment dislocations, today's rule is also 
expected to result in job gains. These gains are projected to occur to 
both the air pollution control industry and to combustion firms as they 
hire personnel to accommodate reallocated waste and/or comply with the 
various requirements of the rule. Hazardous waste combustion sources 
are projected to need additional operation and maintenance personnel 
for the new pollution control equipment and other compliance 
activities, such as new reporting and record keeping requirements.
    The total annual employment gains associated with the proposed 
standards are estimated to range from 407 to 525 FTEs. Job gains to the 
air pollution

[[Page 21352]]

control industry \298\ represent about 31 percent of this total. Among 
all combustors, boilers are projected to experience the greatest number 
of job gains, followed by cement and lightweight aggregate kilns. Job 
gains in these sectors alone represent about 55 percent to 61 percent 
of total projected gains, depending upon regulatory scenario.
---------------------------------------------------------------------------

    \298\ Manufacturers and distributers of air pollution control 
devices are expected to increase sales as a result of this action.
---------------------------------------------------------------------------

    While it may appear that this analysis suggests overall net job 
creation, such a conclusion would be inappropriate. Because the gains 
and losses occur in different sectors of the economy, they should not 
be added together. Doing so would mask important distributional effects 
of the rule. In addition, the employment gain estimates reflect within 
sector impacts only and therefore do not account for potential job 
displacement across sectors. This may occur if investment funds are 
diverted from other areas of the larger economy.

VII. What Are the Benefits of Reductions in Particulate Matter Emissions?

    For the 1999 rule, we estimated the avoided incidence of mortality 
and morbidity associated with reductions in particulate matter (PM) 
emissions.\299\ Estimates of cases of mortality and morbidity avoided 
were made for children and the elderly, as well as the general 
population, using concentration-response functions derived from human 
epidemiological studies. Morbidity effects included respiratory and 
cardiovascular illnesses requiring hospitalization, as well as other 
illnesses not requiring hospitalization, such as acute and chronic 
bronchitis and acute upper and lower respiratory symptoms. Decreases in 
particulate matter-related minor restricted activity days (MRADs) and 
work loss days (WLDs) were also estimated. Rates of avoided incidence, 
work days lost, and days of restricted activity were estimated for each 
of 16 sectors surrounding a facility using the concentration-response 
functions and sector-specific estimates of the corresponding population 
and model-derived ambient air concentration, either annual mean 
PM10 or PM2.5 concentrations or distributions of 
daily PM10 or PM2.5 concentrations, depending on 
the concentration-response function. The sectors were defined by 4 
concentric rings out to a distance of 20 kilometers (about 12 miles), 
each of which was divided into 4 quadrants. The sector-specific rates 
were weighted by facility-specific sampling weights and then summed to 
give the total incidence rates for a given source category.\300\
---------------------------------------------------------------------------

    \299\ See ``Human Health and Ecological Risk Assessment Support 
to the Development of Technical Standards for Emissions from 
Combustion Units Burning Hazardous Wastes: Background Document,'' July 1999.
    \300\ It should be noted that the avoided incidence estimates 
were based entirely on the incremental decrease in ambient air 
concentrations associated with emission controls on the hazardous 
waste sources subject to the 1999 rule. Background levels of 
particulate matter were assumed to be sufficiently high to exceed 
any possible threshold of effect but ambient background levels of 
particulate matter were not otherwise considered in the analysis.
---------------------------------------------------------------------------

    Since performing the risk assessment for the 1999 Assessment, the 
Agency has updated its benefits methodology to reflect recent advances 
in air quality modeling and human health benefits modeling. To estimate 
PM exposure for the 1999 risk assessment, the Agency used the 
Industrial Source Complex Model-Short Term Version 3 (ISCST3). More 
recent EPA benefits analyses have used more advanced air-quality 
models. For example, the Agency's assessment of the industrial boilers 
and process heaters NESHAP used the Climatological Regional Dispersion 
Model (CRDM), which uses a national source-receptor matrix to estimate 
exposure associated with PM emissions.\301\ Similarly, the Agency's 
analysis of the proposed Inter-state Air Quality Rule used the Regional 
Modeling System for Aerosols and Deposition (REMSAD), which also 
accounts for the long-range transport of particles.\302\ In contrast, 
ISCST3 modeled exposure within a 20-kilometer radius of each emissions 
source for the 1999 risk assessment.\303\ To the extent that PM is 
transported further than 20 km from each emissions source, the 1999 
risk assessment may underestimate PM exposure. In addition, to estimate 
exposure in the 1999 risk assessment, EPA used block-group-level data 
from the 1990 Census. More recent studies use data from the 2000 Census.
---------------------------------------------------------------------------

    \301\ U.S. EPA, Regulatory Impact Analysis of The Final 
Industrial Boilers and Process Heaters NESHAP: Final Report, 
February 2004.
    \302\ U.S. EPA, Benefits of the Proposed Inter-State Air Quality 
Rule, January 2004.
    \303\ Research Triangle Institute, Human Health and Ecological 
Risk Assessment Support to The Development of Technical Standards 
for Emissions from Combustion Units Burning Hazardous Wastes: 
Background Document, prepared for U.S. EPA, Office of Solid Waste, 
July 1999.
---------------------------------------------------------------------------

    More recent EPA benefits analyses also apply a different 
concentration-response function for PM mortality than that used for the 
1999 risk assessment. In 1999, EPA used the concentration-response 
function published by Pope, et al. in 1995.\304\ Since that time, 
health scientists have refined estimates of the concentration-response 
relationship, and EPA has updated its methodology for estimating 
benefits to reflect these more recent estimates. In the regulatory 
impact analysis of the non-hazardous boiler MACT standards, EPA used 
the Krewski, et al. re-analysis of the 1995 Pope study to estimate 
avoided premature mortality.\305\ Since the relative risk estimated in 
the Krewski study (1.18) is nearly the same as that presented in Pope 
et al. (1.17), the Agency assumes that updating the 1999 risk 
assessment to reflect the results of the 2000 Krewski study would have 
minimal impact on the estimated benefits associated with the proposed 
HWC MACT replacement standards.
---------------------------------------------------------------------------

    \304\ Pope, C.A., III, M.J. Thun, M.M. Namboodiri, D.W. Dockery, 
J.S. Evans, F.E. Speizer, and C.W. Heath, Jr. 1995. Particulate air 
pollution as a predictor of mortality in a prospective study of U.S. 
adults. American Journal of Respiratory and Critical Care 
Medicine151:669-674, as cited in Research Triangle Institute, op. cit.
    \305\ Krewski D, Burnett RT, Goldbert MS, Hoover K, Siemiatycki 
J, Jerrett M, Abrahamowicz M, White WH. 2000. Reanalysis of the 
Harvard Six Cities Study and the American Cancer Society Study of 
Particulate Air Pollution and Mortality. Special Report to the 
Health Effects Institute, Cambridge, MA, July 2000.
---------------------------------------------------------------------------

    For the current proposal, we took the avoided incidence estimates 
from the September 1999 final rule and adjusted them to reflect the 
particulate matter emission reductions projected to occur under the 
proposed standards and the reduction in the numbers of facilities 
burning hazardous wastes since the analysis for the final rule was 
completed. For cement kilns, lightweight aggregate kilns, and 
incinerators, the estimates were made by adjusting the respective 
estimates at the source category level by the ratio of emission 
reductions (for today's proposed rule vs. the 1999 final rule) and the 
ratio of the number of facilities affected by the rules (facilities 
currently burning hazardous wastes vs. facilities burning hazardous 
wastes in the analysis for the September 1999 final rule).\306\ For 
liquid and solid fuel-fired boilers and hydrochloric acid production 
furnaces, we extrapolated the avoided incidence from the incinerator 
source category using a similar approach except that the ratios of the 
exposed populations were used (corresponding to the concentration-

[[Page 21353]]

response functions from the 1999 analysis), instead of the number of 
facilities. We estimated the exposed populations for hazardous waste-
burning boilers and hydrochloric acid production furnaces using the 
same GIS methods as the September 1999 final rule (i.e., a 16 sector 
overlay). Nonetheless, the extrapolated estimates are subject to some 
uncertainty. The estimates of avoided incidence of mortality and 
morbidity are shown in Table 2. The estimates of days of restricted 
activity and days of work lost are shown in Table 3.
---------------------------------------------------------------------------

    \306\ To account for the increase in population since the 1990 
census was taken, for the Phase I sources we also adjusted the 
avoided incidence estimates by the ratio of the population at the 
national level (corresponding to the concentration-response 
function) for the year 2000 census vs. the 1990 census. For Phase II 
source, we used the year 2000 census to develop source category-
specific population estimates for use in the extrapolations.

                                            Table 2.--PM-Related Avoided Incidence of Mortality and Morbidity
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                        Hospital admissions                         Respiratory                      Illnesses
                                         ---------------------------------------------------------------------------------------------------------------
             Source category                                Respiratory                       Chronic          Acute           Lower           Upper
                                             Mortality        illness     Cardiovascular    bronchitis      bronchitis      respiratory     respiratory
--------------------------------------------------------------------------------------------------------------------------------------------------------
Cement Kilns............................             0.0             0.0             0.0             0.0             0.0             0.1             0.0
Lightweight Aggregate Kilns.............             0.0             0.0             0.0             0.0             0.0             0.0             0.0
Incinerators............................             0.0             0.0             0.0             0.0             0.0             0.0             0.0
Solid Fuel Boilers......................             0.0             0.0             0.0             0.1             0.1             0.7             0.1
HCl Production Furnaces.................             0.0             0.0             0.0             0.0             0.0             0.0             0.0
Liquid Fuel Boilers.....................             0.3             0.9             0.4             5.5             4.2            37.2             4.3
    Total...............................             0.3             0.9             0.4             5.6             4.3            38.0             4.4
--------------------------------------------------------------------------------------------------------------------------------------------------------


                           Table 3.--PM-Related Restricted Activity and Work Loss Days
----------------------------------------------------------------------------------------------------------------
                                                                    Minor          Restricted
                       Source category                            restricted     activity days   Work  loss days
----------------------------------------------------------------------------------------------------------------
Cement Kilns.................................................              3.1              1.0              0.4
Lightweight Aggregate Kilns..................................              0.0              0.0              0.0
Incinerators.................................................              0.0              0.0              0.0
Solid Fuel-Fired Boilers.....................................             59.0             19.4              7.1
HCl Production Furnaces......................................              0.0              0.0              0.0
Liquid Fuel-Fired Boilers....................................           3692.2           1215.9            443.2
                                                              ------------------
    Total....................................................           3754.4           1236.4            450.7
----------------------------------------------------------------------------------------------------------------

    We also conducted an analysis of key factors that influence the PM-
related health benefits by statistically comparing attributes of the 
sources subject to today's proposed rule versus the sources subject to 
the 1999 rule. The greater the similarities between the sources covered 
by today's proposal and the sources subject to the 1999 rule, the more 
confidence we have in the extrapolated incidence estimates. The more 
the dissimilarities, the greater is the uncertainty in the estimates. 
The comparative analysis is discussed in a separate background document 
for today's rule.\307\
---------------------------------------------------------------------------

    \307\ See ``Inferential Risk Analysis in Support of Standards 
for Emissions of Hazardous Air Pollutants from Hazardous Waste 
Combustors,'' prepared under contract to EPA by Research Triangle 
Institute, Research Triangle Park, NC.
---------------------------------------------------------------------------

VIII. What are the Social Costs and Benefits of the Proposed Rule?

    The value of any regulatory action is traditionally measured by the 
net change in social welfare that it generates. Our economic assessment 
for today's rule evaluates compliance costs, social costs, benefits, 
economic impacts, selected other impacts (e.g., children's health, 
unfunded mandates), and small entity impacts. To conduct this analysis, 
we examined the current combustion market and practices, developed and 
implemented a methodology for examining compliance and social costs, 
applied an economic model to analyze industry economic impacts (results 
discussed above), examined benefits, and followed appropriate 
guidelines and procedures for examining equity considerations, 
children's health, and other impacts. The data we used in this analysis 
were the most recently available at the time of the analysis. Because 
our data were limited, the findings from these analyses are more 
accurately viewed as national estimates.

A. Combustion Market Overview

    The hazardous waste industry consists of three key segments: 
hazardous waste generators, fuel blenders/intermediaries, and hazardous 
waste burners. Hazardous waste is combusted at four main types of 
facilities: commercial incinerators, on-site incinerators, waste 
burning kilns (cement kilns and lightweight aggregate kilns), and 
industrial boilers. Commercial incinerators are generally larger in 
size and designed to manage virtually all types of solids, as well as 
liquid wastes. On-site incinerators are more often designed as liquid-
injection systems that handle liquids and pumpable solids. Waste 
burning kilns and boilers generally burn hazardous wastes to generate 
heat and power for their manufacturing processes.
    As discussed above, we have identified a total of 276 sources 
(systems) permitted to burn hazardous waste in the United States. 
Liquid fuel-fired boilers account for 107 sources, followed by on-site 
incinerators at 92 sources. Cement kilns, hydrochloric acid production 
furnaces, and commercial incinerators account for 26, 17, and 15 
sources, respectively. Solid fuel-fired boilers and lightweight 
aggregate kilns make up the remaining, at 12 and seven systems, 
respectively. These 276 sources are operated by a total of 150 
different facilities. On-site incinerators account for 69 facilities, 
or 46 percent of this total, followed by all boiler facilities at 45 
percent (67 facilities). There are 14 cement kilns, 10 commercial 
incineration facilities and three lightweight aggregate kilns. A single 
facility may have one or more combustion systems. Facilities with 
multiple systems may have the same or different types. Thus, the 
numbers presented above will not sum to 150 facilities.

[[Page 21354]]

    The number of sources per facility in the combustion universe 
ranges from one to 12. On average, boilers, hydrochloric acid 
production furnaces, and lightweight aggregate kilns, with an average 
of 2.0 sources per facility, contain more waste burning combustion 
systems per facility than do incinerators and cement kilns, with an 
average of 1.4 sources per facility. On-site incinerators, with 1.3 
sources per facility, have the lowest average among all types of 
combustion devices in the universe.
    Combustion systems operating at chemical and allied product 
facilities represent 72 percent (199 sources) of the total number of 
hazardous waste burning systems. Stone, clay, and glass production 
accounts for 12 percent (34 sources), followed by electric, gas, and 
sanitation services at 8 percent (22 sources).
    The EPA Biennial Reporting System (BRS) reports a total demand for 
all combusted hazardous waste, across all facilities, at 3.56 million 
tons (U.S. ton) in 1999. Commercial energy recovery (cement kilns and 
lightweight aggregate kilns) burned about 31 percent of this total, 
followed by on-site incinerators at just over 28 percent, captive 
energy recovery (all boilers) at 28 percent, and commercial 
incineration at nearly 13 percent. About 62 percent of all waste burned 
in 1999 was organic liquids. This is followed by inorganic liquids (15 
percent), sludges (13 percent), and solids (9 percent). Hazardous gases 
represent about 0.1 percent of the total annual quantity burned. In 
terms of waste source, the industrial organic chemicals sector 
generates approximately a third of all hazardous waste burned, followed 
by pesticides and agricultural chemicals, business services, organic 
fibers, medicinal chemicals, pharmaceuticals, plastics materials and 
resins, petroleum, and miscellaneous.
    Companies that generate large quantities of uniform hazardous 
wastes generally find it more economical and efficient to combust these 
wastes on-site using their own noncommercial systems. Commercial 
incineration facilities manage a wide range of waste streams generated 
in small to medium quantities by diverse industries. Cement kilns, 
lightweight aggregate kilns, and boilers derive heat and energy by 
combining clean burning (solvents and organics) high-Btu liquid 
hazardous wastes \308\ with conventional fuels.
---------------------------------------------------------------------------

    \308\ Many cement kilns are also able to burn a certain level of 
solid waste.
---------------------------------------------------------------------------

    Regulatory requirements, liability concerns, and economics 
influence the demand for combustion services. Regulatory forces 
influence the demand for combustion by mandating certain hazardous 
waste treatment standards (land disposal restriction requirements, 
etc.). Liability concerns of waste generators affect combustion demand 
because combustion, by destroying organic wastes, greatly reduces the 
risk of future environmental problems. Finally, if alternative waste 
management options are more expensive, hazardous waste generators will 
likely choose to send their wastes to combustion facilities in order to 
increase their overall profitability.
    Throughout much of the 1980s, hazardous waste combustors enjoyed a 
strong competitive position and generally maintained a high level of 
profitability. During this period, EPA regulations requiring combustion 
greatly expanded the waste tonnage for this market. In addition, 
federal permitting requirements, as well as powerful local opposition 
to siting of new incinerators, constrained the entry of new combustion 
systems. As a result, combustion prices rose steadily, ultimately 
reaching record levels in 1987. The high profits of the late 1980s 
induced many firms to enter the market, in spite of the difficulties 
and delays anticipated in the permitting and siting process. Hazardous 
waste markets have changed significantly since the late 1980s. In the 
early 1990s, substantial overcapacity resulted in fierce competition, 
declining prices, poor financial performance, numerous project 
cancellations, system consolidations, and facility closures. Since the 
mid 1990s, several additional combustion facilities have closed, while 
many of those that have remained open have consolidated, or further 
consolidated their operations. Available excess capacity is currently 
estimated at about 20 percent of the total 1999 quantity combusted.

B. Baseline Specification

    Proper and consistent baseline specification is vital to the 
accurate assessment of incremental costs, benefits, and other economic 
impacts associated with today's proposed rule. The baseline essentially 
describes the world absent the proposed rule. The incremental impacts 
of today's rule are evaluated by predicting post MACT compliance 
responses with respect to the baseline. The baseline, as applied in 
this analysis, is the point at which today's rule is promulgated. Thus, 
incremental cost and economic impacts are projected beyond the 
standards established in the February 13, 2002, Interim Standards Final 
Rule.

C. Analytical Methodology and Findings--Social Cost Analysis

    Total social costs include the value of resources used to comply 
with the standards by the private sector, the value of resources used 
to administer the regulation by the government, and the value of output 
lost due to shifts of resources away from the current market 
equilibrium. To evaluate these shifts in resources and changes in 
output requires predicting changes in behavior by all affected parties 
in response to the regulation, including responses of directly-affected 
entities, as well as indirectly-affected private parties.
    For this analysis, social costs are grouped into two categories: 
economic welfare (changes in consumer and producer surplus), and 
government administrative costs. The economic welfare analysis 
conducted for today's rule uses a simplified partial equilibrium 
approach to estimate social costs. In this analysis, changes in 
economic welfare are measured by summing the changes in consumer and 
producer surplus. This simplified approach bounds potential economic 
welfare losses associated with the rule by considering two scenarios: 
compliance costs assuming no market adjustments, and market adjusted 
compliance costs. The private sector compliance costs of $57.7 million 
to $77.9 million per year, as presented in Section IV, assume no market 
adjustments. These costs may be considered to represent the high-end of 
total social costs. Our best estimate of social costs assume rational 
market adjustments. Under this scenario, increased compliance costs are 
examined in the context of likely incentives combustion facilities 
would have to continue burning hazardous wastes, and the competitive 
balance in different combustion sectors.
    For all sectors to meet the proposed replacement standards, total 
annualized market-adjusted costs are estimated to range from $41 to $50 
million. The low end of this range assumes no chlorine control 
costs.\309\ The Phase II sources represent about 83 percent of the 
high-end total. Our economic model indicates that two sectors as a 
whole, commercial incinerators and cement kilns, would experience net 
gains following all market adjustments. This occurs due to marginally 
higher prices,

[[Page 21355]]

increased waste receipts, and relatively low upgrade costs. Total 
annual government costs are approximately one-half million dollars for 
the proposed approach.
---------------------------------------------------------------------------

    \309\ We are proposing using section 112(d)(4) of the Clean Air 
Act to establish risk-based standards for total chlorine for 
hazardous waste combustors (except for hydrochloric acid production 
furnaces). The low-end of this cost range assumes all facilities 
emit total chlorine levels below risk-based levels of concern. Under 
this scenario, no total chlorine controls are assumed to be necessary.
---------------------------------------------------------------------------

D. Analytical Methodology and Findings--Benefits Assessment

    This section discusses the monetized and non-monetized benefits to 
human health and the environment potentially associated with today's 
rule. Monetized human health benefits are derived from reductions in PM 
and dioxin/furan exposure and are based on a Value of Statistical Life 
(VSL) estimate of $5.5 million.\10\ Monetized environmental benefits 
are estimated from visibility improvements expected in response to 
reduced air pollution. Non-monetized benefits are associated with human 
health, ecological, and waste minimization factors.
---------------------------------------------------------------------------

    \310\ Office of Management and Budget. Circular A-4. September 
17, 2003.
---------------------------------------------------------------------------

1. Monetized Benefits
    Particulate Matter--We developed monetized estimates of human 
health benefits associated with reduced emissions of particulate matter 
(PM). We also estimated the value of improved visibility associated 
with reduced PM emissions.
    Results from our risk assessment extrapolation procedure, as 
discussed under Section VII above, are used to evaluate incremental 
human health benefits potentially associated with particulate matter 
emission reductions at hazardous waste combustion facilities. This 
analysis used avoided cost factors from the July 1999 Assessment 
document, combined with the updated estimates of avoided adverse health 
effects related only to particulate matter emissions.
    Under the Agency preferred approach, reduced PM emissions are 
estimated to result in monetized human health benefits of approximately 
$4.18 million per year. This is an undiscounted figure. Avoided PM 
morbidity cases account for $2.34 million of this total and include: 
respiratory illness, cardiovascular disease, chronic bronchitis, work 
loss days, and minor restricted activity. Chronic bronchitis accounts 
for approximately 90 percent of the total morbidity cases. All 
morbidity cases are assumed to be avoided within the first year 
following reduced PM emissions and are not discounted under any scenario.
    Avoided premature deaths (mortality) account for the remaining 
$1.84 million per year. Assuming a discount rate of three and seven 
percent, PM mortality benefits would be $1.70 million and $1.54 
million, respectively. Our discounted analysis of PM mortality benefits 
assumes that 25 percent of premature mortalities occur during the first 
year, 25 percent occur during the second year, and 16.7 percent occur 
in each of the three subsequent years after exposure. This methodology 
is consistent with the Agency's analysis of the proposed Clear Skies 
Act of 2003. Total monetized PM benefits, therefore, are estimated to 
range from $4.24 million/year to $4.52 million per year. These findings 
appear to indicate that particulate matter reductions from the interim 
baseline to the replacement standards are small relative to the 
reductions achieved in going to the interim standards. This assessment 
does not consider corresponding health benefits associated with the 
reduction of metals carried by the PM.
    Dioxin/furan--Dioxin/furan emissions are projected to be reduced by 
a total of 4.68 grams per year under the Agency Preferred Approach. Of 
this total, 0.42 grams/year are derived in going from the interim 
standards baseline to the floor levels. The remaining 4.26 grams/year 
are derived by going from the floor to beyond-the-floor (BTF) 
standards. In the July 23, 1999 Addendum to the Assessment, cancer risk 
reductions linked to consumption of dioxin-contaminated agricultural 
products accounted for the vast majority of the 0.36 cancer cases per 
year that were expected to be avoided due to the 1999 standards. Cancer 
risk reductions associated with the replacement standards are expected 
to be less than 0.36 cases per year, but greater than zero.
    Assuming that the proportional relationship between dioxin/furans 
emissions and premature cancer deaths is constant, we estimate that 
approximately 0.058 premature cancer deaths will be avoided on an 
annual basis under the Agency Preferred Approach because of reduced 
dioxin/furans emissions. This estimate reflects a cancer risk slope 
factor of 1.56 x 105 [mg/kg/day]-1. This cancer 
slope factor is derived from the Agency's 1985 health assessment 
document for polychlorinated dibenzo-p-dioxins \311\ and represents an 
upper bound 95th percentile confidence limit of the excess cancer risk 
from a lifetime exposure.
---------------------------------------------------------------------------

    \311\ USEPA, 1985. Health Assessment Document for 
Polychlorinated Dibenzo-p-Dioxins. EPA/600/8-84/014F. Final Report. 
Office of Health and Environmental Assessment. Washington, DC. 
September, 1985.
---------------------------------------------------------------------------

    For the past 12 years the Agency has been conducting a reassessment 
of the human health risks associated with dioxin and dioxin-like 
compounds. This reassessment \312\ will soon be under review at the 
National Academy of Sciences (NAS), as specified by Congress in the 
Conference Report accompanying EPA's fiscal year 2003 appropriation 
(Title IV of Division K of the Conference Report for the Consolidated 
Appropriations Resolution of 2003). Evidence compiled from this draft 
reassessment indicates that the carcinogenic effects of dioxin/furans 
may be six times as great as believed in 1985, reflecting an upper 
bound cancer risk slope factor of 1 x 106 [mg/kg/day]-1 for 
some individuals. Agency scientists' more likely (central tendency) 
estimates (derived from the ED01 rather than the 
LED01) result in slope factors and risk estimates that are 
within 2-3 times of the upper bound estimates (i.e., between 3 x 
105 [mg/kg/day]-1 and 5 x 105 [mg/kg/
day]-1) based on the available epidemiological and animal 
cancer data. Risks could be as low as zero for some individuals. Use of 
the alternative upper bound cancer risk slope factor would result in up 
to 0.35 premature cancer deaths avoided in response to the proposed 
replacement standards for dioxin/furans. The assessment of upper bound 
cancer risk using this alternative slope factor should not be 
considered Agency policy. The proposed standards for dioxin in today's 
rule were not based on this draft reassessment.
---------------------------------------------------------------------------

    \312\ U.S.EPA, Exposure and Human Health Reassessment of 
2,3,7,8-Tetrachlorodibenzo-p-Dioxin (TCDD) and Related Compounds, 
September 2000. Note: Toxicity risk factors presented in this 
document should not be considered EPA's official estimate of dioxin 
toxicity, but rather reflect EPA's ongoing effort to reevaluate 
dioxin toxicity.
---------------------------------------------------------------------------

    Total non-discounted human health benefits associated with 
projected dioxin reductions are estimated at $0.32 million/year. Total 
benefits are estimated to range from $0.12 million/year to $0.17 
million/year at a 3 percent discount rate, and $0.03 million/year to 
$0.08 million/year at a 7 percent rate. The two figures under each 
discount scenario reflect an assumed latency period of 21 or 34 years.
    Visibility Benefits--In addition to the human health benefits 
discussed above, we also assessed visibility improvements. Particulate 
matter emissions are a primary cause of reduced visibility. Changes in 
the level of ambient particulate matter caused by the reduction in 
emissions associated with the Agency preferred approach are expected to 
increase the level of visibility in some parts of the United States. We 
derived upper and lower bound benefits estimates associated with 
particulate matter emissions

[[Page 21356]]

reductions using two different methodologies, each comparing reductions 
to those associated with the Clean Air Act. The first approach assumes 
a linear relationship between particulate matter reductions and 
visibility improvements. Under this approach, the Agency preferred 
replacement standards may result in a visibility benefit of 
approximately $5.78 million per year. Our second approach is to assume 
a linear relationship between health benefits and visibility benefits 
associated with reduction in particulate matter emissions. Under this 
approach, the proposed replacement standards could result in a 
visibility benefit of approximately $0.11 million/year. This method 
represents our lower bound estimate of visibility benefits.
2. Non-Monetized Benefits
    We examined, but did not monetize human health benefits potentially 
associated with reduced exposure to lead, mercury, and total chlorine. 
Non monetized ecological benefits potentially associated with 
reductions in dioxin/furan, selected metals, total chlorine, and 
particulate matter were also examined. Finally, waste minimization is 
examined as a non-monetized benefit.
    Lead--The proposed replacement standards are expected to reduce 
lead emissions by approximately five tons per year. In comparison, the 
1999 standards were expected to reduce lead emissions by 89 tons per 
year, and were expected to reduce cumulative lead exposures for two 
children age 0-5 to less than 10 [mu]g/dL. The lead benefits associated 
with the proposed replacement standards are therefore expected to be 
modest, reducing the cumulative lead exposures for less than two 
children age 0-5, less than 10 [mu]g/dL annually. The proposed 
replacement standards will also result in reduced lead levels for 
children of sub-populations with especially high levels of exposure. 
Children of subsistence fishermen, commercial beef farmers, and 
commercial dairy farmers who face the greatest levels of cumulative 
lead exposure will also experience comparable reductions in overall 
exposure as a result of the MACT standards.
    Mercury--Mercury emitted from hazardous waste burning incinerators, 
kilns, boilers, and other natural and man-made sources is carried by 
winds through the air and eventually is deposited to water and land. 
Recent estimates (which are highly uncertain) of annual total global 
mercury emissions from all sources (natural and anthropogenic) are 
about 5,000 to 5,500 tons per year (tpy). Of this total, about 1,000 
tpy are estimated to be natural emissions and about 2,000 tpy are 
estimated to be contributions through the natural global cycle of re-
emissions of mercury associated with past anthropogenic activity. 
Current anthropogenic emissions account for the remaining 2,000 tpy. 
Point sources such as fuel combustion; waste incineration; industrial 
processes; and metal ore roasting, refining, and processing are the 
largest point source categories on a world-wide basis. Given the global 
estimates noted above, U.S. anthropogenic mercury emissions are 
estimated to account for roughly 3 percent of the global total, and 
U.S. hazardous waste burning incinerators, kilns, and boilers are 
estimated to account for about 0.0045 percent of total global emissions.
    Mercury exists in three forms: elemental mercury, inorganic mercury 
compounds (primarily mercuric chloride), and organic mercury compounds 
(primarily methylmercury). Mercury is usually released in an elemental 
form and later converted into methylmercury by bacteria. Methylmercury 
may be more toxic to humans than other forms of mercury, in part 
because it is more easily absorbed in the body.\313\ If the deposition 
is directly to a water body, then the processes of aqueous fate, 
transport, and transformation begin. If deposition is to land, then 
terrestrial fate and transport processes occur first and then aqueous 
fate and transport processes occur once the mercury has cycled into a 
water body. In both cases, mercury may be returned to the atmosphere 
through resuspension. In water, mercury is transformed to methylmercury 
through biological processes and for exposures affected by this 
rulemaking. Methylmercury is considered to be the form of greatest 
concern. Once mercury has been transformed into methylmercury, it can 
be ingested by the lower trophic level organisms where it can 
bioaccumulate in fish tissue (i.e., concentrations of mercury remain in 
the fish's system for a long period of time and accumulates in the fish 
tissue as predatory fish consume other species in the food chain). Fish 
and wildlife at the top of the food chain can, therefore, have mercury 
concentrations that are higher than the lower species, and they can 
have concentrations of mercury that are higher than the concentration 
found in the water body itself. In addition, when humans consume fish 
containing methylmercury, the ingested methylmercury is almost 
completely absorbed into the blood and distributed to all tissues 
(including the brain); it also readily passes through the placenta to 
the fetus and fetal brain.\314\
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    \313\ Regulatory Impact Analysis of the Final Industrial Boilers 
and Process Heaters NESHAP: Final Report, February 2004.
    \314\ Regulatory Impact Analysis of the Final Industrial Boilers 
and Process Heaters NESHAP: Final Report, February 2004.
---------------------------------------------------------------------------

    Based on the findings of the National Research Council, EPA has 
concluded that benefits of Hg reductions would be most apparent at the 
human consumption stage, as consumption of fish is the major source of 
exposure to methylmercury. At lower levels, documented Hg exposure 
effects may include more subtle, yet potentially important, 
neurodevelopmental effects.
    Some subpopulations in the U.S., such as: Native Americans, 
Southeast Asian Americans, and lower income subsistence fishers, may 
rely on fish as a primary source of nutrition and/or for cultural 
practices. Therefore, they consume larger amounts of fish than the 
general population and may be at a greater risk to the adverse health 
effects from Hg due to increased exposure. In pregnant women, 
methylmercury can be passed on to the developing fetus, and at 
sufficient exposure may lead to a number of neurological disorders in 
children. Thus, children who are exposed to low concentrations of 
methylmercury prenatally may be at increased risk of poor performance 
on neurobehavioral tests, such as those measuring attention, fine motor 
function, language skills, visual-spatial abilities (like drawing), and 
verbal memory. The effects from prenatal exposure can occur even at 
doses that do not result in effects in the mother. Mercury may also 
affect young children who consume fish containing mercury. Consumption 
by children may lead to neurological disorders and developmental 
problems, which may lead to later economic consequences.
    In response to potential risks of mercury-containing fish 
consumption, EPA and FDA have issued fish consumption advisories which 
provide recommended limits on consumption of certain fish species for 
different populations. EPA and FDA have developed a new joint advisory 
that was released in March 2004. This new FDA-EPA fish advisory 
recommends that women and young children reduce the risks of Hg 
consumption in their diet by moderating their fish consumption, 
diversifying the types of fish they consume, and by checking any local 
advisories that may exist for local rivers and streams. This 
collaborative FDA-EPA effort will greatly assist in

[[Page 21357]]

educating the most susceptible populations. Additionally, the 
reductions of Hg from this regulation may potentially lead to fewer 
fish consumption advisories (both from federal or state agencies), 
which will benefit the fishing community. Currently 44 states have 
issued fish consumption advisories for non-commercial fish for some or 
all of their waters due to contamination of mercury. The scope of FCA 
issued by states varies considerably, with some warnings applying to 
all water bodies in a state and others applying only to individual 
lakes and streams. Note that the absence of a state advisory does not 
necessarily indicate that there is no risk of exposure to unsafe levels 
of mercury in recreationally caught fish. Likewise, the presence of a 
state advisory does not indicate that there is a risk of exposure to 
unsafe levels of mercury in recreationally caught fish, unless people 
consume these fish at levels greater than those recommended by the fish 
advisory.
    Reductions in methylmercury concentrations in fish should reduce 
exposure, subsequently reducing the risks of mercury-related health 
effects in the general population, to children, and to certain 
subpopulations. Fish consumption advisories (FCA) issued by the States 
may also help to reduce exposures to potential harmful levels of 
methylmercury in fish. To the extent that reductions in mercury 
emissions reduces the probability that a water body will have a FCA 
issued, there are a number of benefits that will result from fewer 
advisories, including increased fish consumption, increased fishing 
choices for recreational fishers, increased producer and consumer 
surplus for the commercial fish market, and increased welfare for 
subsistence fishing populations.
    There is a great deal of variability among individuals in fish 
consumption rates; however, critical elements in estimating 
methylmercury exposure and risk from fish consumption include the 
species of fish consumed, the concentrations of methylmercury in the 
fish, the quantity of fish consumed, and how frequently the fish is 
consumed. The typical U.S. consumer eating a wide variety of fish from 
restaurants and grocery stores is not in danger of consuming harmful 
levels of methylmercury from fish and is not advised to limit fish 
consumption. Those who regularly and frequently consume large amounts 
of fish, either marine or freshwater, are more exposed. Because the 
developing fetus may be the most sensitive to the effects from 
methylmercury, women of child-bearing age are regarded as the 
population of greatest interest. The EPA, Food and Drug Administration, 
and many States have issued fish consumption advisories to inform this 
population of protective consumption levels.
    The EPA's 1997 Mercury Study RTC supports a plausible link between 
anthropogenic releases of Hg from industrial and combustion sources in 
the U.S. and methylmercury in fish. However, these fish methylmercury 
concentrations also result from existing background concentrations of 
Hg (which may consist of Hg from natural sources, as well as Hg which 
has been re-emitted from the oceans or soils) and deposition from the 
global reservoir (which includes Hg emitted by other countries). Given 
the current scientific understanding of the environmental fate and 
transport of this element, it is not possible to quantify how much of 
the methylmercury in locally-caught fish consumed by the U.S. 
population is contributed by U.S. emissions relative to other sources 
of Hg (such as natural sources and re-emissions from the global pool). 
As a result, the relationship between Hg emission reductions from Phase 
I and Phase II sources assessed in this rule, and methylmercury 
concentrations in fish cannot be calculated in a quantitative manner 
with confidence. In addition, there is uncertainty regarding over what 
time period these changes would occur.
    Given the present understanding of the Hg cycle, the flux of Hg 
from the atmosphere to land or water at one location is comprised of 
contributions from: the natural global cycle; the cycle perturbed by 
human activities; regional sources; and local sources. Recent advances 
allow for a general understanding of the global Hg cycle and the impact 
of the anthropogenic sources. It is more difficult to make accurate 
generalizations of the fluxes on a regional or local scale due to the 
site-specific nature of emission and deposition processes. Similarly, 
it is difficult to quantify how the water deposition of Hg leads to an 
increase in fish tissue levels. This will vary based on the specific 
characteristics of the individual lake, stream, or ocean.
    Total Chlorine--We were not able to quantify the benefits 
associated with reductions in total chlorine emissions. Total chlorine 
is a combination of hydrogen chloride and chlorine gas. The replacement 
standards proposed today are expected to reduce total chlorine 
emissions by 2,638 tons. Hydrogen chloride is corrosive to the eyes, 
skin, and mucous membranes. Acute inhalation can cause eye, nose, and 
respiratory tract irritation and inflamation, and pulmonary edema. 
Chronic occupational inhalation has been reported to cause gastritis, 
bronchitis, and dermatitis in workers. Long term exposure can also 
cause dental discoloration and erosion. No information is available on 
the reproductive or developmental effects in humans. Chlorine gas 
inhalation can cause bronchitis, asthma and swelling of the lungs, 
headaches, heart disease, and meningitis. Acute exposure causes more 
severe respiratory and lung effects, and can result in fatalities in 
extreme cases. No information is available on the reproductive or 
developmental effects in humans. The proposed replacement standards are 
expected to reduce chlorine exposure for people in close proximity to 
hazardous waste combustion facilities, and are therefore likely to 
reduce the risk of all associated health effects.
    Ecological Benefits--We examined ecological benefits through a 
comparison of the 1999 Assessment and the proposed replacement 
standards. Ecological benefits in the 1999 Assessment were based on 
reductions of approximately 100 tons per year in dioxin/furans and 
selected metals. Lead was the only pollutant of concern for aquatic 
ecosystems, while mercury appeared to be of greatest concern for 
terrestrial ecosystems. Dioxin/furan and lead emission reductions also 
provided some potential benefits for terrestrial ecosystems. The 
proposed replacement standards are expected to reduce dioxin/furan and 
selected metal emissions by about 15 to 20 percent of the 1999 
estimate. The proposed replacement standards will produce fewer 
incremental benefits than those estimated for the 1999 Assessment (and 
later, for the 2002 Interim Standards). However, the 1999 Assessment 
did not estimate the ecological benefits of MACT standards for 
industrial boilers and industrial furnaces. These systems were excluded 
from the universe in 1999 but are part of the universe addressed by the 
proposed replacement standards. As a result, while the total ecological 
benefits of the proposed rule are likely to be modest, areas near 
facilities with boilers may enjoy more significant ecological benefits 
under the proposed replacement standards than areas near facilities 
that have already complied with the 2002 Interim standards.
    Mercury, lead, and chlorides are among the HAPs that can cause 
damage to the health and visual appearance of

[[Page 21358]]

plants.\315\ While the total value of forest health is difficult to 
estimate, visible deterioration in the health of forests and plants can 
cause a measurable change in recreation behavior. Several studies that 
measure the change in outdoor recreation behavior according to forest 
health are available to place a value on aesthetic degradation of 
forests.\316\ Although these studies are available, additional research 
is needed to fully understand the effects of these HAPs on the forest 
ecosystem. Thus, these benefits are not quantified in this analysis.
---------------------------------------------------------------------------

    \315\ Although the primary pollutants which are detrimental to 
vegetation aesthetics and growth are tropospheric ozone, sulfur 
dioxide, and hydrogen fluoride, three pollutants which are not 
regulated in the MACT standards, some literature exists on the 
relationship between metal deposition and vegetation health. 
(Mercury Study Report to Congress Volume VI, 1997) (Several studies 
are cited in this report.)
    \316\ See, for example, Brown, T.C. et al. 1989, Scenic Beauty 
and Recreation Value: Assessing the Relationship, In J. Vining, ed., 
Social Science and Natural Resources Recreation Management, Westview 
Press, Boulder, Colorado; this work studies the relationship between 
forest characteristics and the value of recreational participation. 
Also see Peterson, D.G. et al. 1987, Improving Accuracy and Reducing 
Cost of Environmental Benefit Assessments. Draft Report to the U.S. 
EPA, by Energy and Resource Consultants, Boulder, Colorado; Walsh et 
al. 1990, Estimating the public benefits of protecting forest 
quality, Journal of Forest Management, 30:175-189., and Homes et al. 
1992, Economic Valuation of Spruce-Fir Decline in the Southern 
Appalachian Mountains: A comparison of Value Elicitation Methods. 
Presented at the Forestry and the Environment: Economic Perspectives 
Conference, March 9-11, 1992 Jasper, Alberta, Canada for estimates 
of the WTP of visitors and residents to avoid forest damage.
---------------------------------------------------------------------------

    Emissions that are sufficient to cause structural and aesthetic 
damage to vegetation are likely to affect growth as well. Little 
research has been done on the effects of compounds such as chlorine, 
heavy metals (as air pollutants), and PM on agricultural 
productivity.\317\ Even though the potential for visible damage and 
production decline from metals and other pollutants suggests the 
proposed replacement standards could increase agricultural 
productivity, these changes cannot be quantified.
---------------------------------------------------------------------------

    \317\ MacKenzie, James J., and Mohamed T. El-Ashry, Air 
Pollution's Toll on Forests and Crops (New Haven, Yale University 
Press, 1989).
---------------------------------------------------------------------------

3. Waste Minimization Benefits
    Facilities that burn hazardous waste and remain in operation 
following implementation of the replacement standards are expected to 
experience marginally increased costs as a result of the MACT 
standards. This will result in an incentive to pass these increased 
costs on to their customers in the form of higher combustion prices. In 
the 1999 Assessment we conducted a waste minimization analysis to 
inform the expected price change. The analysis concluded that the 
demand for combustion is relatively inelastic. While a variety of waste 
minimization alternatives are available for managing hazardous waste 
streams that are currently combusted, the costs of these alternatives 
generally exceed the cost of combustion. When the additional costs of 
compliance with the MACT standards are taken into account, waste 
minimization alternatives still tend to exceed the higher combustion 
costs. This inelasticity suggests that, in the short term, large 
reductions in waste quantities are not likely. However, over the longer 
term (i.e., as production systems are updated), companies may continue 
to seek alternatives to expensive waste-management (i.e., source 
reduction). To the extent that increases in combustion prices provide 
additional incentive to adopt more efficient processes, the proposed 
replacement standards may contribute to the longer term process based 
waste minimization efforts.
    No waste minimization impacts are captured in our quantitative 
analysis of costs and benefits. A quantitative assessment of the 
benefits associated with waste minimization may result in double-
counting of some of the benefits described earlier. For example, waste 
minimization may reduce emissions of hazardous air pollutants and 
therefore have a positive effect on public health. Furthermore, 
emission reductions beyond those necessary for compliance with the 
replacement standards are not addressed in the benefits assessment. In 
addition, waste minimization is likely to result in specific types of 
benefits not captured in this Assessment. For example, waste generators 
that engage in waste minimization may experience a reduction in their 
waste handling costs and could also reduce the risk related to waste 
spills and waste management. Finally, waste minimization procedures 
potentially stimulated by today's action, as proposed, may result in 
additional costs to facilities that implement these technologies. These 
have not been assessed in our analysis but are likely to at least 
partially offset corresponding benefits.
4. Conclusion
    Total non-discounted monetized benefits are estimated to range from 
$$4.6 million/year to $10.3 million/year. It is important to emphasize 
that monetized benefits represent only a portion of the total benefits 
associated with this rule. A significant portion of the benefits are 
not monetized. Specifically, ecological benefits, and human health 
benefits associated with reductions in chlorine, mercury, and lead are 
not quantified or monetized. In some locations these benefits may be 
significant. In addition, specific sub-populations near combustion 
facilities, including children and minority populations, may be 
disproportionately affected by environmental risks and may therefore 
enjoy more significant benefits. For a complete discussion of the 
methodology, data, findings, and limitations associated with our 
benefits analysis the reader is encouraged to review the Assessment and 
Addendum documents, as identified under Part Five, Section I.

IX. How Does the Proposed Rule Meet the RCRA Protectiveness Mandate?

    As discussed in more detail below, we believe today's proposed 
standards, based on evaluating estimated emissions from sources, are 
generally protective. We therefore propose that these standards apply 
in lieu of RCRA air emission standards in most instances.

A. Background

    Section 3004(a) of RCRA requires the Agency to promulgate standards 
for hazardous waste treatment, storage, and disposal facilities as 
necessary to protect human health and the environment. The standards 
for hazardous waste incinerators generally rest on this authority. In 
addition, section 3004(q) requires the Agency to promulgate standards 
for emissions from facilities that burn hazardous waste fuels (e.g., 
cement and lightweight aggregate kilns, boilers, and hydrochloric acid 
production furnaces) as necessary to protect human health and the 
environment. Using RCRA authority, the Agency has historically 
established emission (and other) standards for hazardous waste 
combustors that are either entirely risk-based (e.g., site-specific 
standards for metals under the Boiler and Industrial Furnace rule), or 
are technology-based but determined by a generic risk assessment to be 
protective (e.g., the DRE standard for incinerators and BIFs).
    The MACT standards proposed today implement the technology-based 
regime of CAA section 112. There is, however, a residual risk component 
to air toxics standards. Section 112(f) of the Clean Air Act requires 
the Agency to impose, within eight years after promulgation of the 
technology-based standards promulgated under section 112(d) (i.e., the 
authority for today's proposed standards), additional controls if 
needed to protect public health with an ample

[[Page 21359]]

margin of safety or to prevent adverse environmental effect.
    RCRA section 1006 directs that EPA ``integrate all provisions of 
[RCRA]
for purposes of administration and enforcement and . . . avoid 
duplication, to the maximum extent possible, with the appropriate 
provisions of the Clean Air Act. . . .'' Thus, although considerations 
of risk are not ordinarily part of the MACT process, in order to avoid 
duplicative standards where possible, we have evaluated the 
protectiveness of the standards proposed today.
    As noted above, under RCRA, EPA must promulgate standards ``as may 
be necessary to protect human health and the environment.'' RCRA 
section 3004(a) and (q). Technology-based standards developed under CAA 
section 112 do not automatically satisfy this requirement, but may do 
so in fact. See 59 FR at 29776 (June 6, 1994) and 60 FR at 32593 (June 
23, 1995) (RCRA regulation of secondary lead smelter emissions 
unnecessary at this time given stringency of technology-based standard 
and pendency of section 112(f) determination). If the MACT standards, 
as a factual matter, are sufficiently protective to also satisfy the 
RCRA mandate, then no independent RCRA standards are required. 
Conversely, if MACT standards are inadequate, the RCRA authorities 
would have to be used to fill the gap.

B. Assessment of Risks

    The Agency has conducted an evaluation, for the purposes of 
satisfying the RCRA statutory mandates, of the degree of protection 
afforded by the MACT standards being proposed today. We have not 
conducted a comprehensive risk assessment for this proposal; however, a 
comprehensive risk assessment for incinerators, cement kilns, and 
lightweight aggregate kilns was conducted for the 1999 MACT rule. For 
this proposed rule, we are instead comparing characteristics of the 
sources covered by the 1999 rule to the sources covered by the 
replacement rule that are related to risk (e.g., emissions\318\, stack 
characteristics, meteorology, and population). In the 1999 rule we 
concluded that the promulgated standards were sufficiently protective 
and the existing RCRA standards for incinerators, cement kilns, and 
lightweight aggregate kilns need not be retained. Based on the results 
of statistical comparisons, we infer whether risks for incinerators, 
cement kilns, lightweight aggregate kilns, boilers, and hydrochloric 
acid production furnaces will be about the same, less than, or greater 
than the risks estimated for the 1999 rule. We think the comparative 
analysis lends additional support to our view regarding the 
protectiveness of the proposed standards.\319\
---------------------------------------------------------------------------

    \318\ We estimated emissions for each facility based on site-
specific stack gas concentrations and flow rates measured during 
trial burn or compliance tests. For sources where stack gas 
measurements were unavailable, data were imputed by random selection 
from a pool of measurements for similar units. We assumed that 
sources would design their systems to meet an emission level below 
the proposed standard. (In the case of dioxin/furan for sources that 
would not be subject to a numerical emission standard, we assumed 
liquid boilers without dry air pollution control systems and solid 
fuel-fired boilers were emitting at their baseline emissions level 
as portrayed in the data base.) We called this the ``design level.'' 
If available test data in our data base indicate that the source was 
emitting below the design level, we assumed that the source would 
continue to emit at the levels measured in test. For sources 
emitting above the design level of a standard, we assumed they would 
need to reduce emissions to the design level. In the 1999 rule, the 
design level was taken as 70% of the standard. For today's proposed 
standards, the design level is generally the lower of: (1) 70% of 
the standard; or (2) the arithmetic average of the emissions data of 
the best performing sources.
    \319\ See ``Inferential Risk Analysis in Support of Standards 
for Emissions of Hazardous Air Pollutants from Hazardous Waste 
Combustors,'' prepared under contract to EPA by Research Triangle 
Institute, Research Triangle Park, NC.
---------------------------------------------------------------------------

    We believe today's proposed standards provide a substantial degree 
of protection to human health and the environment. We therefore do not 
believe that we need to retain the existing RCRA standards for boilers 
and hydrochloric acid production furnaces (just as we found that 
existing RCRA standards for incinerators, cement kilns, and lightweight 
aggregate kilns were no longer needed after the 1999 rule). However, as 
previously discussed in more detail in Part Two, Section XVII.D, site-
specific risk assessments may be warranted on an individual source 
basis to ensure that the MACT standards provide adequate protection in 
accordance with RCRA.

Part Five: Administrative Requirements

I. Executive Order 12866: Regulatory Planning and Review

    Under Executive Order 12866 [58 FR 51735 (October 4, 1993)], the 
Agency must determine whether a regulatory action is ``significant'' 
and therefore subject to OMB review and the requirements of the 
Executive Order. The Order defines ``significant regulatory action'' as 
one that is likely to result in a rule that may:
    (1) Have an annual effect on the economy of $100 million or more or 
adversely affect in a material way the economy, a sector of the 
economy, productivity, competition, jobs, the environment, public 
health or safety, or State, local, or tribal governments or communities;
    (2) Create a serious inconsistency or otherwise interfere with an 
action taken or planned by another agency;
    (3) Materially alter the budgetary impact of entitlements, grants, 
user fees, or loan programs or the rights and obligations of recipients 
thereof; or
    (4) Raise novel legal or policy issues arising out of legal 
mandates, the President's priorities, or the principles set forth in 
the Executive Order.
    Pursuant to the terms of Executive Order 12866, it has been 
determined that this rule is a ``significant regulatory action'' 
because this action may raise novel legal or policy issues due to the 
standards development methodology applied in development of the 
proposed replacement standards. As such, this action was submitted to 
OMB for review. Changes made in response to OMB suggestions or 
recommendations will be documented in the public record.
    The aggregate annualized social costs for this rule are under $100 
million (ranging from $41 to $50 million/yr). We have prepared an 
economic assessment in support of today's action. This document is 
entitled: Assessment of the Potential Costs, Benefits, and Other 
Impacts of the Hazardous Waste Combustion MACT Replacement Standards--
Proposed Rule, March 2004. This Assessment is designed to adhere to 
analytical requirements established under Executive Order 12866, and 
corresponding Agency and OMB guidance; subject to data, analytical, and 
resource limitations. An Addendum entitled: Addendum to the Assessment 
of the Potential Costs, Benefits, and Other Impacts of the Hazardous 
Waste Combustion MACT Replacement Standards--Proposed Rule, March 2004, 
has also been prepared. This Addendum addresses belated changes made to 
the final proposed standards that were not captured in the Assessment. 
The RCRA docket established for today's rulemaking maintains a copy of 
the Assessment and Addendum documents for public review. Interested 
persons are encouraged to read both documents for a full understanding 
of the analytical methodology, findings, and limitations associated 
with this report. Comments and supporting data are encouraged and welcomed.

II. Paperwork Reduction Act

    The information collection requirements in this proposed rule have 
been submitted for approval to the Office of Management and Budget 
(OMB) under the Paperwork Reduction

[[Page 21360]]

Act, 44 U.S.C. 3501 et seq. The Information Collection Request (ICR) 
document prepared by EPA has been assigned EPA ICR number 1773.07.
    EPA is proposing today's regulations under section 112 of the CAA, 
to protect and enhance the quality of our nation's air resources, and 
to promote public health and welfare and the productive capacity of the 
population. See CAA section 101(b)(1). To this end, CAA sections 112(a) 
and (d) direct EPA to set standards for stationary sources emitting the 
hazardous air pollutants. The records and reports required by the 
information collection under this proposal will be used to show 
compliance with the requirements of the rule. EPA believes that if 
these minimum requirements specified under the regulations are not met, 
EPA will not fulfill its Congressional mandate to protect public health 
and the environment.
    The information collection required under this ICR is mandatory for 
the regulated sources as it is essential to properly enforce the 
emission limitation requirements of the rule and will be used to 
further the proper performance of the functions of EPA. EPA has made 
extensive efforts to integrate the monitoring, compliance testing and 
recordkeeping requirements of the CAA and RCRA, so that the burden on 
the sources is kept to a minimum, and the facilities are able to avoid 
duplicate and unnecessary submissions. We also ensure, to the fullest 
extent of the law, the confidentiality of the submitted information.
    The projected annual burden under today's proposal is estimated at 
70,199 hours at a total cost of $5.1 millions. For the hour burden, we 
estimate a total of 2,612 responses from 243 respondents, or an average 
of 27 hours per response, or 289 hours per respondent. The cost burden 
to respondents or recordkeepers resulting from the collection of 
information includes a total capital and start-up cost component, a 
total operation and maintenance component and a purchase of services 
component. The capital and start-up cost component is estimated at 
$36,184 annualized over its expected useful life, and the operation and 
maintenance component is estimated at $488,947 annualized over its 
expected useful life. The frequency of different responses varies and 
is monthly or annually for some and on occasion for others.
    Burden means the total time, effort, or financial resources 
expended by persons to generate, maintain, retain, or disclose or 
provide information to or for a Federal agency. This includes the time 
needed to review instructions; develop, acquire, install, and utilize 
technology and systems for the purposes of collecting, validating, and 
verifying information, processing and maintaining information, and 
disclosing and providing information; adjust the existing ways to 
comply with any previously applicable instructions and requirements; 
train personnel to be able to respond to a collection of information; 
search data sources; complete and review the collection of information; 
and transmit or otherwise disclose the information.
    An agency may not conduct or sponsor, and a person is not required 
to respond to a collection of information unless it displays a 
currently valid OMB control number. The OMB control numbers for EPA's 
regulations in 40 CFR are listed in 40 CFR part 9.
    To comment on the Agency's need for this information, the accuracy 
of the provided burden estimates, and any suggested methods for 
minimizing respondent burden, including the use of automated collection 
techniques, EPA has established a public docket for this rule, which 
includes this ICR, under Docket ID number RCRA-2003-0016. Submit any 
comments related to the ICR for this proposed rule to EPA and OMB. See 
Addresses section at the beginning of this notice for where to submit 
comments to EPA. Send comments to OMB at the Office of Information and 
Regulatory Affairs, Office of Management and Budget, 725 17th Street, 
NW., Washington, DC 20503, Attention: Desk Office for EPA. Since OMB is 
required to make a decision concerning the ICR between 30 and 60 days 
after April 20, 2004, a comment to OMB is best assured of having its 
full effect if OMB receives it by May 20, 2004. The final rule will 
respond to any OMB or public comments on the information collection 
requirements contained in this proposal.

III. Regulatory Flexibility Act

    The Regulatory Flexibility Act (RFA) as amended by the Small 
Business Regulatory Enforcement Fairness Act of 1996 (SBREFA), 5 U.S.C. 
601 et seq. generally requires an agency to prepare a regulatory 
flexibility analysis of any rule subject to notice and comment 
rulemaking requirements under the Administrative Procedure Act, or any 
other statute. This analysis must be completed unless the agency is 
able to certify that the rule will not have a significant economic 
impact on a substantial number of small entities. Small entities 
include small businesses, small not-for-profit enterprises, and small 
governmental jurisdictions.
    We have determined that hazardous waste combustion facilities are 
not owned by small entities (local governments, tribes, etc.) other 
than businesses. Therefore, only businesses were analyzed for small 
entity impacts. For the purposes of the impact analyses, small entity 
is defined either by the number of employees or by the dollar amount of 
sales. The level at which a business is considered small is determined 
for each North American Industrial Classification System (NAICS) code 
by the Small Business Administration.
    Affected individual waste combustors (incinerators, cement kilns, 
lightweight aggregate kilns, solid and liquid fuel-fired boilers, and 
hydrochloric acid production furnaces) will bear the impacts of today's 
rule. These units will incur direct economic impacts as a result of 
today's rule. Few of the hazardous waste combustion facilities affected 
by this proposed rule were found to be owned by small businesses, as 
defined by the Small Business Administration (SBA). From our universe 
of 150 facilities, we identified six facilities that are currently 
owned by small businesses. Three of these are liquid boilers, one is an 
on-site incinerator, one is a cement kiln, and one is an LWAK. 
Annualized economic impacts of the proposed replacement standards were 
found to range from 0.01 percent to 2.23 percent of gross annual 
corporate revenues. Economic impacts to five of the companies were 
found to be less than one percent, while the sixth company was found to 
experience potential impacts between one and 3 percent (2.23 percent). 
These findings reflect worst-case cost estimates under the Agency 
Preferred Approach. Actual economic impacts are likely to be less as 
market adjustments take effect (see appendix H of the Assessment and 
Assessment of Small Entity Impacts in the Addendum).
    Based on the above findings we believe that one small company with 
potential impacts between one and 3 percent of gross revenues does not 
reflect a significant economic impact on a substantial number of 
potentially affected small entities. Therefore, after considering the 
economic impacts of today's proposed rule on small entities, I certify 
that this action will not have a significant economic impact on a 
substantial number of small entities. The reader is encouraged to 
review and comment on our regulatory flexibility screening analysis 
prepared in support of this determination: Regulatory Flexibility 
Screening Analysis for the Proposed Hazardous Waste Combustion MACT 
Replacement Standards. This

[[Page 21361]]

document is incorporated as Appendix H of the Assessment document.

IV. Unfunded Mandates Reform Act

    Signed into law on March 22, 1995, the Unfunded Mandates Reform Act 
(UMRA) calls on all federal agencies to provide a statement supporting 
the need to issue any regulation containing an unfunded federal mandate 
and describing prior consultation with representatives of affected 
state, local, and tribal governments.
    Today's proposed rule is not subject to the requirements of 
sections 202, 204 and 205 of UMRA. In general, a rule is subject to the 
requirements of these sections if it contains ``Federal mandates'' that 
may result in the expenditure by State, local, and tribal governments, 
in the aggregate, or by the private sector, of $100 million or more in 
any one year. Today's final rule does not result in $100 million or 
more in expenditures. The aggregate annualized social cost for today's 
rule is estimated to range from $41 to $50 million.

V. Executive Order 13132: Federalism

    Executive Order 13132, entitled ``Federalism'' (64 FR 43255, August 
10, 1999), requires EPA to develop an accountable process to ensure 
``meaningful and timely input by State and local officials in the 
development of regulatory policies that have federalism implications.'' 
``Policies that have federalism implications'' is defined in the 
Executive Order to include regulations that have ``substantial direct 
effects on the States, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government.''
    Under Executive Order 13132, EPA may not issue a regulation that 
has federalism implications, that imposes substantial direct compliance 
costs, and that is not required by statute, unless the Federal 
government provides the funds necessary to pay the direct compliance 
costs incurred by State and local governments, or EPA consults with 
State and local officials early in the process of developing the 
proposed regulation.
    This proposed rule does not have federalism implications. It will 
not have substantial direct effects on the States, on the relationship 
between the national government and the States, or on the distribution 
of power and responsibilities among the various levels of government, 
as specified in the Order. The proposed rule focuses on requirements 
for facilities burning hazardous waste, without affecting the 
relationships between Federal and State governments. Thus, Executive 
Order 13132 does not apply to this rule. Although section 6 of 
Executive Order 13132 does not apply to this rule, EPA did include 
three State representatives on our Agency workgroup. These 
representatives participated in the development of this proposed rule. 
State officials were contacted concerning the methodology used in 
standards development.
    In the spirit of Executive Order 13132, and consistent with EPA 
policy to promote communications between EPA and State and local 
governments, EPA specifically solicits comment on this proposed rule 
from State and local officials.

VI. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    Executive Order 13175 \320\: Consultation and Coordination with 
Indian Tribal Governments (59 FR 22951, November 9, 2000), requires EPA 
to develop an accountable process to ensure ``meaningful and timely 
input by tribal officials in the development of regulatory policies 
that have tribal implications.'' Our Agency workgroup for this 
rulemaking includes Tribal representation. We have determined that this 
rule, as proposed, does not have tribal implications, as specified in 
the Order. No Tribal governments are known to own or operate hazardous 
waste combustors subject to the requirements of this proposed rule. 
Furthermore, this proposed rule focuses on requirements for all 
regulated sources without affecting the relationships between tribal 
governments in its implementation, and applies to all regulated 
sources, without distinction of the surrounding populations affected. 
Thus, Executive Order 13175 does not apply to this rule. EPA 
specifically solicits additional comment on this proposed rule from 
tribal officials.
---------------------------------------------------------------------------

    \320\ Executive Order 13084 is revoked by this Executive Order.
---------------------------------------------------------------------------

VII. Executive Order 13045: Protection of Children From Environmental 
Health and Safety Risks

    Executive Order 13045: ``Protection of Children from Environmental 
Health Risks and Safety Risks'' (62 FR. 19885, April 23, 1997) applies 
to any rule that: (1) Is determined to be ``economically significant'' 
as defined under E.O. 12866, and (2) concerns an environmental health 
or safety risk that EPA has reason to believe may have a 
disproportionate effect on children. If the regulatory action meets 
both criteria, the Agency must evaluate the environmental health or 
safety effects of the planned rule on children, and explain why the 
planned regulation is preferable to other potentially effective and 
reasonably feasible alternatives considered by the Agency. Today's 
final rule is not subject to the Executive Order because it is not 
economically significant as defined under point one of the Order, and 
because the Agency does not have reason to believe the environmental 
health or safety risks addressed by this action present a 
disproportionate risk to children.

VIII. Executive Order 13211: Actions That Significantly Affect Energy 
Supply, Distribution, or Use

    This rule is not subject to Executive Order 13211, ``Actions 
Concerning Regulations That Significantly Affect Energy Supply, 
Distribution, or Use'' (66 FR 28355 (May 22, 2001)). This rule, as 
proposed will not seriously disrupt energy supply, distribution 
patterns, prices, imports or exports. Furthermore, this rule is not an 
economically significant action under Executive Order 12866.

IX. National Technology Transfer and Advancement Act

    Section 12(d) of the National Technology Transfer and Advancement 
Act of 1995 (``NTTAA''), Public Law 104-113, 12(d) (15 U.S.C. 272 note) 
directs EPA to use voluntary consensus standards in its regulatory 
activities unless to do so would be inconsistent with applicable law or 
otherwise impractical. Voluntary consensus standards are technical 
standards (e.g., materials specifications, test methods, sampling 
procedures, and business practices) that are developed or adopted by 
voluntary consensus standards bodies. The NTTAA directs EPA to provide 
Congress, through OMB, explanations when the Agency decides not to use 
available and applicable voluntary consensus standards.
    This proposed rulemaking involves environmental monitoring or 
measurement. Consistent with the Agency's Performance Based Measurement 
System (``PBMS''), EPA proposes not to require the use of specific, 
prescribed analytic methods. Rather, the Agency plans to allow the use 
of any method that meets the prescribed performance criteria. The PBMS 
approach is intended to be more flexible and cost-effective for the 
regulated community; it is also intended to encourage innovation in 
analytical technology and improved data quality. EPA is not precluding 
the use of any method, whether it constitutes a

[[Page 21362]]

voluntary consensus standard or not, as long as it meets the 
performance criteria specified.
    EPA welcomes comments on this aspect of the proposed rulemaking 
and, specifically, invites the public to identify potentially-
applicable voluntary consensus standards and to explain why such 
standards should be used in this regulation.

X. Executive Order 12898: Federal Actions To Address Environmental 
Justice in Minority Populations and Low-Income Populations

    Executive Order 12898, ``Federal Actions To Address Environmental 
Justice in Minority Populations and Low-Income Populations'' (February 
11, 1994) requires us to complete an analysis of today's rule with 
regard to equity considerations. The Order is designed to address the 
environmental and human health conditions of minority and low-income 
populations. This section briefly discusses potential impacts (direct 
or disproportional) today's rule may have in the area of environmental 
justice.
    To comply with the Executive Order, we have assessed whether 
today's rule may have negative or disproportionate effects on minority 
or low-income populations. We have recently analyzed demographic data 
from the U.S. Census. Previously we examined data from two other 
reports: ``Race, Ethnicity, and Poverty Status of the Populations 
Living Near Cement Plants in the United States'' (EPA, August 1994) and 
``Race, Ethnicity, and Poverty Status of the Populations Living Near 
Hazardous Waste Incinerators in the United States'' (EPA, October 
1994). These reports examine the number of low-income and minority 
individuals living near a relatively large sample of cement kilns and 
hazardous waste incinerators and provide county, state, and national 
population percentages for various sub-populations. The demographic 
data in these reports provide several important findings when examined 
in conjunction with the risk reductions projected from today's rule.
    We find that combustion facilities, in general, are not located in 
areas with disproportionately high minority and low-income populations. 
However, there is evidence that hazardous waste burning cement kilns 
are somewhat more likely to be located in areas that have relatively 
higher low-income populations. Furthermore, there are a small number of 
commercial hazardous waste incinerators located in highly urbanized 
areas where there is a disproportionately high concentration of 
minorities and low-income populations within one and five mile radii. 
The reduced emissions at these facilities due to today's rule could 
represent meaningful environmental and health improvements for these 
populations. Overall, today's rule should not result in any adverse or 
disproportional health or safety effects on minority or low-income 
populations. Any impacts on these populations are likely to be positive 
due to the reduction in emissions from combustion facilities near 
minority and low-income population groups. The Assessment document 
available in the RCRA docket established for today's rule presents the 
full Environmental Justice Analysis.

XI. Congressional Review

    The Congressional Review Act (CRA), 5 U.S.C. 801 et seq., as added 
by the Small Business Regulatory Enforcement Fairness Act of 1996, 
generally provides that before a rule may take effect, the agency 
promulgating the rule must submit a rule report, which includes a copy 
of the rule, to each House of the Congress and to the Comptroller 
General of the United States. Prior to publication of the final rule in 
the Federal Register, we will submit all necessary information to the 
U.S. Senate, the U.S. House of Representatives, and the Comptroller 
General of the United States. Under the CRA, a major rule cannot take 
effect until 60 days after it is published in the Federal Register. As 
proposed, this action is not a ``major rule'' as defined by 5 U.S.C. 
804(2).

List of Subjects

40 CFR Part 63

    Environmental protection, Air pollution control, Hazardous 
substances, Incorporation by reference, Reporting and recordkeeping 
requirements.

40 CFR Part 264

    Environmental protection, Air pollution control, Hazardous waste, 
Insurance, Packaging and containers, Reporting and recordkeeping 
requirements, Security measures, Surety bonds.

40 CFR Part 265

    Environmental protection, Air pollution control, Hazardous waste, 
Insurance, Packaging and containers, Reporting and recordkeeping 
requirements.

40 CFR Part 266

    Environmental protection, Energy, Hazardous waste, Recycling, 
Reporting and recordkeeping requirements.

40 CFR Part 270

    Environmental protection, Administrative practice and procedure, 
Confidential business information, Hazardous materials transportation, 
Hazardous waste, Reporting and recordkeeping requirements.

40 CFR Part 271

    Administrative practice and procedure, Hazardous materials 
transportation, Hazardous waste, Intergovernmental relations, Reporting 
and recordkeeping requirements.

    Dated: March 31, 2004.
Michael O. Leavitt,
Administrator.
    For the reasons set out in the preamble, title 40, chapter I, of 
the Code of Federal Regulations is proposed to be amended as follows:

PART 63--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS 
FOR SOURCE CATEGORIES

    1. The authority citation for part 63 continues to read as follows:

    Authority: 42 U.S.C. 7401 et seq.

    2. Section 63.1200 is amended by revising the introductory text and 
paragraph (a)(2) to read as follows:

Sec.  63.1200  Who is subject to these regulations?

    The provisions of this subpart apply to all hazardous waste 
combustors: incinerators that burn hazardous waste, cement kilns that 
burn hazardous waste, lightweight aggregate kilns that burn hazardous 
waste, solid fuel-fired boilers that burn hazardous waste, liquid fuel-
fired boilers that burn hazardous waste, and hydrochloric acid 
production furnaces that burn hazardous waste. Hazardous waste 
combustors are also subject to applicable requirements under parts 260-
270 of this chapter.
    (a) * * *
    (2) Both area sources and major sources subject to this subpart, 
but not previously subject to title V, are immediately subject to the 
requirement to apply for and obtain a title V permit in all States, and 
in areas covered by part 71 of this chapter.
* * * * *
    3. Section 63.1201 is amended in paragraph (a) by revising the 
definition of ``New source'', and adding definitions for ``Hydrochloric 
acid production furnace'', ``Liquid fuel-fired boiler'', and ``Solid 
fuel-fired boiler'' in alphabetical order to read as follows:

Sec.  63.1201  Definitions and acronyms used in this subpart.

    (a) * * *

[[Page 21363]]

    Hydrochloric acid production furnace and HCl production furnace 
mean a halogen acid furnace defined in Sec.  260.10 of this chapter 
that produces aqueous hydrochloric acid (HCl) product and that burns 
hazardous waste at any time.
* * * * *
    Liquid fuel-fired boiler and liquid boiler mean a boiler defined in 
Sec.  260.10 of this chapter that does not burn solid fuels and that 
burns hazardous waste at any time. Liquid fuel-fired boiler includes 
boilers that only burn gaseous fuels.
* * * * *
    New source means any affected source the construction or 
reconstruction of which is commenced after the dates specified under 
Sec. Sec.  63.1206(a)(1)(i)(B), (a)(1)(ii)(B), and (a)(2)(ii).
* * * * *
    Solid fuel-fired boiler and solid boiler mean a boiler defined in 
Sec.  260.10 of this chapter that burns a solid fuel and that burns 
hazardous waste at any time.
* * * * *
    4. Section 63.1206 is amended by:
    a. Revising paragraph (a).
    b. Revising paragraphs (b)(1)(ii), (b)(6) introductory text, 
(b)(7)(i)(A), (b)(9)(i) introductory text, (b)(10)(i) introductory 
text, (b)(11), (b)(13)(i) introductory text, and (b)(3)(ii).
    c. Revising paragraphs (c)(1)(i) introductory text and (c)(7)(ii) 
introductory text.
    d. Adding paragraphs (c)(7)(ii)(C) and (c)(7)(iii).
    The revisions and additions read as follows:

Sec.  63.1206  When and how must you comply with the standards and 
operating requirements?

    (a) Compliance dates. (1) Compliance dates for incinerators, cement 
kilns, and lightweight aggregate kilns that burn hazardous waste--(i) 
Compliance date for standards under Sec. Sec.  63.1203, 63.1204, and 
63.1205--(A) Compliance dates for existing sources. You must comply 
with the emission standards under Sec. Sec.  63.1203, 63.1204, and 
63.1205 and the other requirements of this subpart no later than the 
compliance date, September 30, 2003, unless the Administrator grants 
you an extension of time under Sec.  63.6(i) or Sec.  63.1213.
    (B) New or reconstructed sources. (1) If you commenced construction 
or reconstruction of your hazardous waste combustor after April 19, 
1996, you must comply with the emission standards under Sec. Sec.  
63.1203, 63.1204, and 63.1205 and the other requirements of this 
subpart by the later of September 30, 1999 or the date the source 
starts operations, except as provided by paragraph (a)(1)(i)(B)(2) of 
this section. The costs of retrofitting and replacement of equipment 
that is installed specifically to comply with this subpart, between 
April 19, 1996 and a source's compliance date, are not considered to be 
reconstruction costs.
    (2) For a standard under Sec. Sec.  63.1203, 63.1204, and 63.1205 
that is more stringent than the standard proposed on April 19, 1996, 
you may achieve compliance no later than September 30, 2003 if you 
comply with the standard proposed on April 19, 1996 after September 30, 
1999. This exception does not apply, however, to new or reconstructed 
area source hazardous waste combustors that become major sources after 
September 30, 1999. As provided by Sec.  63.6(b)(7), such sources must 
comply with the standards under Sec. Sec.  63.1203, 63.1204, and 
63.1205 at startup.
    (ii) Compliance date for standards under Sec. Sec.  63.1219, 
63.1220, and 63.1221--(A) Compliance dates for existing sources. You 
must comply with the emission standards under Sec. Sec.  63.1219, 
63.1220, and 63.1221 and the other requirements of this subpart no 
later than the compliance date, [date three years after date of 
publication of the final rule in the Federal Register], unless the 
Administrator grants you an extension of time under Sec.  63.6(i) or 
Sec.  63.1213.
    (B) New or reconstructed sources. (1) If you commenced construction 
or reconstruction of your hazardous waste combustor after April 20, 
2004, you must comply with the emission standards under Sec. Sec.  
63.1219, 63.1220, and 63.1221 and the other requirements of this 
subpart by the later of [date of publication of the final rule in the 
Federal Register]
or the date the source starts operations, except as 
provided by paragraph (a)(1)(ii)(B)(2) of this section. The costs of 
retrofitting and replacement of equipment that is installed 
specifically to comply with this subpart, between April 20, 2004, and a 
source's compliance date, are not considered to be reconstruction costs.
    (2) For a standard under Sec. Sec.  63.1219, 63.1220, and 63.1221 
that is more stringent than the standard proposed on April 20, 2004, 
you may achieve compliance no later than [date three years after date 
of publication of the final rule in the Federal Register]
if you comply 
with the standard proposed on April 20, 2004, after [date of 
publication of the final rule in the Federal Register]. This exception 
does not apply, however, to new or reconstructed area source hazardous 
waste combustors that become major sources after [date three years 
after date of publication of the final rule in the Federal Register]. 
As provided by Sec.  63.6(b)(7), such sources must comply with the 
standards under Sec. Sec.  63.1219, 63.1220, and 63.1221 at startup.
    (2) Compliance dates for solid fuel-fired boilers, liquid fuel-
fired boilers, and hydrogen chloride production furnaces that burn 
hazardous waste for standards under Sec. Sec.  63.1216, 63.1217, and 
63.1218.--(i) Compliance date for existing sources. You must comply 
with the standards of this subpart no later than the compliance date, 
[date three years after date of publication of the final rule in the 
Federal Register], unless the Administrator grants you an extension of 
time under Sec.  63.6(i) or Sec.  63.1213.
    (ii) New or reconstructed sources. (A) If you commenced 
construction or reconstruction of your hazardous waste combustor after 
April 20, 2004, you must comply with this subpart by the later of [date 
of publication of the final rule in the Federal Register]
or the date 
the source starts operations, except as provided by paragraph 
(a)(2)(ii)(B) of this section. The costs of retrofitting and 
replacement of equipment that is installed specifically to comply with 
this subpart, between April 20, 2004, and a source's compliance date, 
are not considered to be reconstruction costs.
    (B) For a standard in the subpart that is more stringent than the 
standard proposed on April 20, 2004, you may achieve compliance no 
later than [date three years after date of publication of the final 
rule in the Federal Register]
if you comply with the standard proposed 
on April 20, 2004, after [date of publication of the final rule in the 
Federal Register]. This exception does not apply, however, to new or 
reconstructed area source hazardous waste combustors that become major 
sources after [date three years after date of publication of the final 
rule in the Federal Register]. As provided by Sec.  63.6(b)(7), such 
sources must comply with this subpart at startup.
    (3) Early compliance. If you choose to comply with the emission 
standards of this subpart prior to the dates specified in paragraphs 
(a)(1) and (a)(2) of this section, your compliance date is the earlier 
of the date you postmark the Notification of Compliance under Sec.  
63.1207(j)(1) or the dates specified in paragraphs (a)(1) and (a)(2) of 
this section.
    (b) * * *
    (1) * * *
    (ii) When hazardous waste is not in the combustion chamber (i.e., 
the hazardous waste feed to the combustor has been cut off for a period 
of time not less than the hazardous waste residence

[[Page 21364]]

time) and you have documented in the operating record that you are 
complying with all otherwise applicable requirements and standards 
promulgated under authority of sections 112 (e.g., subparts LLL, NNNNN, 
DDDDD) or 129 of the Clean Air Act in lieu of the emission standards 
under Sec. Sec.  63.1203, 63.1204, 63.1205, 63.1215, 63.1216, 63.1217, 
63.1218, 63.1219, and 63.1220; the monitoring and compliance standards 
of this section and Sec. Sec.  63.1207 through 63.1209, except the 
modes of operation requirements of Sec.  63.1209(q); and the 
notification, reporting, and recordkeeping requirements of Sec. Sec.  
63.1210 through 63.1212.
* * * * *
    (6) Compliance with the carbon monoxide and hydrocarbon emission 
standards. This paragraph applies to sources that elect to comply with 
the carbon monoxide and hydrocarbon emissions standards of this subpart 
by documenting continuous compliance with the carbon monoxide standard 
using a continuous emissions monitoring system and documenting 
compliance with the hydrocarbon standard during the destruction and 
removal efficiency (DRE) performance test or its equivalent.
* * * * *
    (7) * * * (i) * * *
    (A) You must document compliance with the Destruction and Removal 
Efficiency (DRE) standard under this subpart only once provided that 
you do not modify the source after the DRE test in a manner that could 
affect the ability of the source to achieve the DRE standard.
* * * * *
    (9) * * * (i) You may petition the Administrator to recommend 
alternative semivolatile metal, low volatile metal, mercury, or 
hydrogen chloride/chlorine gas emission standards under Sec.  63.1205 
if:
* * * * *
    (10) * * * (i) You may petition the Administrator to recommend 
alternative semivolatile metal, low volatile metal, mercury, or 
hydrogen chloride/chlorine gas emission standards under Sec.  63.1204 
if:
* * * * *
    (11) Calculation of hazardous waste residence time. You must 
calculate the hazardous waste residence time and include the 
calculation in the performance test plan under Sec.  63.1207(f) and the 
operating record. You must also provide the hazardous waste residence 
time in the Documentation of Compliance under Sec.  63.1211(d) and the 
Notification of Compliance under Sec. Sec.  63.1207(j) and 63.1210(d).
* * * * *
    (13) * * *
    (i) Cement kilns that feed hazardous waste at a location other than 
the end where products are normally discharged and where fuels are 
normally fired must comply with the carbon monoxide and hydrocarbon 
standards of this subpart as follows:
* * * * *
    (ii) Lightweight aggregate kilns that feed hazardous waste at a 
location other than the end where products are normally discharged and 
where fuels are normally fired must comply with the hydrocarbon 
standards of this subpart as follows:
    (A) Existing sources must comply with the 20 parts per million by 
volume hydrocarbon standard of this subpart;
    (B) New sources must comply with the 20 parts per million by volume 
hydrocarbon standard of this subpart.
* * * * *
    (c) * * * (1) * * * (i) You must operate only under the operating 
requirements specified in the Documentation of Compliance under Sec.  
63.1211(d) or the Notification of Compliance under Sec. Sec.  
63.1207(j) and 63.1210(d), except:
* * * * *
    (7) * * *
    (ii) Bag leak detection system requirements. If your combustor is 
equipped with a baghouse (fabric filter), you must continuously operate 
a bag leak detection system that meets the specifications and 
requirements of paragraph (c)(7)(ii)(A) of this section and you must 
comply with the corrective measures requirements of paragraph 
(c)(7)(ii)(B) of this section.
* * * * *
    (C) Excessive exceedances notification. If you operate the 
combustor when the detector response exceeds the alarm set-point more 
than 5 percent of the time during any 6-month block time period, you 
must submit a notification to the Administrator within 5 days that 
describes the causes of the exceedances and the revisions to the 
design, operation, or maintenance of the combustor or baghouse you are 
taking to minimize exceedances.
    (iii) Particulate matter detection system requirements for 
electrostatic precipitators and ionizing wet scrubbers. If your 
combustor is equipped with an electrostatic precipitator or ionizing 
wet scrubber, and you elect not to establish under Sec.  
63.1209(m)(1)(iv) site-specific operating parameter limits that are 
linked to the automatic waste feed cutoff system under paragraph (c)(3) 
of this section, you must continuously operate a particulate matter 
detection system that meets the specifications and requirements of 
paragraph (c)(7)(iii)(A) of this section and you must comply with the 
corrective measures requirements of paragraph (c)(7)(iii)(B) of this 
section.
    (A) Particulate matter detection system requirements.--(1) The 
particulate matter detection system must be certified by the 
manufacturer to be capable of continuously detecting and recording 
particulate matter emissions at the loadings you expect to achieve 
during the comprehensive performance test;
    (2) The particulate matter detector shall provide output of 
relative or absolute particulate matter loadings;
    (3) The particulate matter detection system shall be equipped with 
an alarm system that will sound an audible alarm when an increase in 
relative or absolute particulate loadings is detected over the set-point
    (4) You must install and operate the particulate matter detection 
system in a manner consistent with available written guidance from the 
U.S. Environmental Protection Agency or, in the absence of such written 
guidance, the manufacturer's written specifications and recommendations 
for installation, operation, and adjustment of the system;
    (5) You must establish the alarm set-point as the average detector 
response of the test run averages achieved during the comprehensive 
performance test demonstrating compliance with the particulate matter 
emission standard. You must comply with the alarm set-point on a 6-hour 
rolling average, updated each hour with a one-hour block average that 
is the average of the detector responses over each 15-minute block.
    (6) Where multiple detectors are required to monitor multiple 
control devices, the system's instrumentation and alarm system may be 
shared among the detectors.
    (B) Particulate matter detection system corrective measures 
requirements. The operating and maintenance plan required by paragraph 
(c)(7)(i) of this section must include a corrective measures plan that 
specifies the procedures you will follow in the case of a particulate 
matter detection system alarm. The corrective measures plan must 
include, at a minimum, the procedures used to determine and record the 
time and cause of the alarm as well as the corrective measures taken to 
correct the control device malfunction or minimize emissions as

[[Page 21365]]

specified below. Failure to initiate the corrective measures required 
by this paragraph is failure to ensure compliance with the emission 
standards in this subpart.
    (1) You must initiate the procedures used to determine the cause of 
the alarm within 30 minutes of the time the alarm first sounds; and
    (2) You must alleviate the cause of the alarm by taking the 
necessary corrective measure(s) which may include shutting down the 
combustor.
    (C) Excessive exceedances notification. If you operate the 
combustor when the detector response exceeds the alarm set-point more 
than 5 percent of the time during any 6-month block time period, you 
must submit a notification to the Administrator within 5 days that 
describes the causes of the exceedances and the revisions to the 
design, operation, or maintenance of the combustor or electrostatic 
precipitator or ionizing wet scrubber you are taking to minimize 
exceedances.
    5. Section 63.1207 is amended by:
    a. Revising paragraph (b)(1).
    b. Adding paragraph (b)(3).
    c. Revising paragraph (c)(1).
    d. Adding paragraph (c)(3).
    e. Revising paragraphs (e)(2) and (e)(3)(iv).
    f. Revising paragraphs (f)(1)(ii)(D ), (f)(1)(xiii), and 
(f)(1)(xiv).
    g. Adding paragraph (f)(1)(xv).
    h. Revising paragraphs (j)(1)(ii) and (j)(3).
    i. Revising paragraph (l)(1) introductory text.
    The revisions and additions read as follows:

Sec.  63.1207  What are the performance testing requirements?

* * * * *
    (b) * * *
    (1) Comprehensive performance test. You must conduct comprehensive 
performance tests to demonstrate compliance with the emission standards 
provided by the subpart, establish limits for the operating parameters 
provided by Sec.  63.1209, and demonstrate compliance with the 
performance specifications for continuous monitoring systems.
* * * * *
    (3) One-Time Dioxin/Furan Test for Boilers Not Subject to a 
Numerical Dioxin/Furan Standard. For boilers that are not subject to a 
numerical dioxin/furan emission standard under Sec. Sec.  63.1216 and 
63.1217--solid fuel-fired boilers, and those liquid fuel-fired boilers 
that are not equipped with a dry particulate matter control device--you 
must conduct a one-time emission test for dioxin/furan under feed and 
operating conditions that are most likely to maximize dioxin/furan 
emissions, similar to a dioxin/furan compliance test.
    (i) You must conduct the dioxin/furan emissions test no later than 
the deadline for conducting the initial comprehensive performance test.
    (ii) You may use dioxin/furan emissions data from previous testing 
to meet this requirement, provided that:
    (A) The testing was conducted under feed and operating conditions 
that are most likely to maximize dioxin/furan emissions, similar to a 
dioxin/furan compliance test;
    (B) You have not changed the design or operation of the boiler in a 
manner that could significantly affect stack gas dioxin/furan emission 
concentrations; and
    (C) The data meet quality assurance objectives that may be 
determined on a site-specific basis.
    (iii) You may use dioxin/furan emissions data from a boiler to 
represent emissions from another on-site boiler in lieu of testing 
(i.e., data in lieu of testing) if the design and operation, including 
fuels and hazardous waste feed, of the boilers are identical.
    (iv) You must include the results of the one-time dioxin/furan 
emissions test with the results of the initial comprehensive 
performance test in the Notification of Compliance.
    (v) You must repeat the dioxin/furan emissions test if you change 
the design or operation of the source in a manner that may increase 
dioxin/furan emissions.
    (c) * * * (1) Test date. Except as provided by paragraphs (c)(2) 
and (c)(3) of this section, you must commence the initial comprehensive 
performance test not later than six months after the compliance date.
* * * * *
    (3) For incinerators, cement kilns, and lightweight aggregate 
kilns, you must commence the initial comprehensive performance test to 
demonstrate compliance with the standards under Sec. Sec.  63.1219, 
63.1220, and 63.1221 not later than 12 months after the compliance date.
* * * * *
    (e) * * *
    (2) After the Administrator has approved the site-specific test 
plan and CMS performance evaluation test plan, but no later than 60 
calendar days before initiation of the test, you must make the test 
plans available to the public for review. You must issue a public 
notice to all persons on your facility/public mailing list (developed 
pursuant to 40 CFR 70.7(h), 71.11(d)(3)(i)(E) and 124.10(c)(1)(ix)) 
announcing the approval of the test plans and the location where the 
test plans are available for review. The test plans must be accessible 
to the public for 60 calendar days, beginning on the date that you 
issue your public notice. The location must be unrestricted and provide 
access to the public during reasonable hours and provide a means for 
the public to obtain copies. The notification must include the 
following information at a minimum:
    (i) The name and telephone number of the source's contact person;
    (ii) The name and telephone number of the regulatory agency's 
contact person;
    (iii) The location where the approved test plans and any necessary 
supporting documentation can be reviewed and copied;
    (iv) The time period for which the test plans will be available for 
public review; and
    (v) An expected time period for commencement and completion of the 
performance test and CMS performance evaluation test.
    (3) * * *
    (iv) Public notice. At the same time that you submit your petition 
to the Administrator, you must notify the public (e.g., distribute a 
notice to the facility/public mailing list developed pursuant to 40 CFR 
70.7(h), 71.11(d)(3)(i)(E) and 124.10(c)(1)(ix)) of your petition to 
waive a performance test. The notification must include all of the 
following information at a minimum:
    (A) The name and telephone number of the source's contact person;
    (B) The name and telephone number of the regulatory agency's 
contact person;
    (C) The date the source submitted its site-specific performance 
test plan and CMS performance evaluation test plans; and
    (D) The length of time requested for the waiver.
    (f) * * *
    (1) * * *
    (ii) * * *
    (D) The Administrator may approve on a case-by-case basis a 
hazardous waste feedstream analysis for organic hazardous air 
pollutants in lieu of the analysis required under paragraph 
(f)(1)(ii)(A) of this section if the reduced analysis is sufficient to 
ensure that the POHCs used to demonstrate compliance with the 
applicable DRE standards of this subpart continue to be representative 
of the organic hazardous air pollutants in your hazardous waste 
feedstreams;
* * * * *

[[Page 21366]]

    (xiii) For cement kilns with in-line raw mills, if you elect to use 
the emissions averaging provision of this subpart, you must notify the 
Administrator of your intent in the initial (and subsequent) 
comprehensive performance test plan, and provide the information 
required by the emission averaging provision;
    (xiv) For preheater or preheater/precalciner cement kilns with dual 
stacks, if you elect to use the emissions averaging provision of this 
subpart, you must notify the Administrator of your intent in the 
initial (and subsequent) comprehensive performance test plan, and 
provide the information required by the emission averaging provision;
    (xv) If you request to use Method 23 for dioxin/furan you must 
provide the information required under Sec.  63.1208(b)(1)(i)(B);
* * * * *
    (j) * * * (1) * * *
    (ii) Upon postmark of the Notification of Compliance, you must 
comply with all operating requirements specified in the Notification of 
Compliance in lieu of the limits specified in the Documentation of 
Compliance required under Sec.  63.1211(d).
* * * * *
    (3) See Sec. Sec.  63.7(g), 63.9(h), and 63.1210(d) for additional 
requirements pertaining to the Notification of Compliance (e.g., you 
must include results of performance tests in the Notification of 
Compliance).
* * * * *
    (l) Failure of performance test--(1) Comprehensive performance 
test. The provisions of this paragraph do not apply to the initial 
comprehensive performance test if you conduct the test prior to your 
compliance date.
* * * * *
    6. Section 63.1208 is amended by revising paragraphs (b)(1)(i) and 
(b)(5) to read as follows:

Sec.  63.1208  What are the test methods?

* * * * *
    (b) * * *
    (1) * * * (i) To determine compliance with the emission standard 
for dioxins and furans, you must use:
    (A) Method 0023A, Sampling Method for Polychlorinated Dibenzp-p-
Dioxins and Polychlorinated Dibenzofurans emissions from Stationary 
Sources, EPA Publication SW-846, as incorporated by reference in 
paragraph (a) of this section; or
    (B) Method 23, provided in appendix A, part 60 of this chapter, 
except that for coal-fired boilers, sources equipped with an activated 
carbon injection system, and other sources that the Administrator 
determines may emit carbonaceous particulate matter that may bias 
Method 23 results, you may use Method 23 only upon the Administrator's 
approval. In determining whether to grant approval to use Method 23, 
the Administrator may consider factors including whether dioxin/furan 
are detected at levels substantially below the emission standard, and 
whether previous Method 0023 analyses detected low levels of dioxin/
furan in the front half.
* * * * *
    (5) Hydrogen chloride and chlorine gas--(i) Compliance with MACT 
standards. To determine compliance with the emission standard for 
hydrogen chloride and chlorine gas (combined), you must use:
    (A) Method 26/26A as provided in appendix A, part 60 of this 
chapter; or
    (B) Methods 320 or 321 as provided in appendix A, part 60 of this 
chapter, or ASTM D 6735-01, Test Method for Measurement of Gaseous 
Chlorides and Fluorides from Mineral Calcining Exhaust Sources--
Impinger Method to measure emissions of hydrogen chloride, and Method 
26/26A to measure emissions of chlorine gas.
    (ii) Compliance with risk-based limits under Sec.  63.1215. To 
demonstrate compliance with emission limits established under Sec.  
63.1215, you must use Methods 26/26A, 320,or 321, or ASTM D 6735-01, 
Test Method for Measurement of Gaseous Chlorides and Fluorides from 
Mineral Calcining Exhaust Sources--Impinger Method, except:
    (A) For cement kilns and sources equipped with a dry acid gas 
scrubber, you must use Methods 320 or 321, or ASTM D 6735-01 to measure 
hydrogen chloride, and the back-half, caustic impingers of Method 26/
26A to measure chlorine gas; and
    (B) For incinerators, boilers, and lightweight aggregate kilns, you 
must use Methods 320 or 321, or ASTM D 6735-01 to measure hydrogen 
chloride, and Method 26/26A to measure total chlorine, and calculate 
chlorine gas by difference if:
    (1) The bromine/chlorine ratio in feedstreams is greater than 5 
percent; or
    (2) The sulfur/chlorine ratio in feedstreams is greater than 50 percent.
* * * * *
    7. Section 63.1209 is amended by:
    a. Revising paragraphs (a)(1)(ii)(A), (a)(1)(iv)(D), and 
(a)(1)(v)(D).
    b. Revising paragraph (f)(1).
    c. Revising the heading of paragraph (g)(1) introductory text and 
paragraph (g)(1)(i).
    d. Revising paragraphs (k)(1)(i) and (k)(2)(i).
    e. Revising paragraph (l)(1).
    f. Revising paragraph (m)(1)(iv) introductory text.
    g. Revising paragraph (n)(2).
    h. Revising paragraph (o)(1).
    i. Revising paragraph (q)(1)(ii).
    The revisions read as follows:

Sec.  63.1209  What are the monitoring requirements?

    (a) * * * (1) * * *
    (ii) * * *
    (A) You must maintain and operate each COMS in accordance with the 
requirements of Sec.  63.8(c) except for the requirements under Sec.  
63.8(c)(3). The requirements of Sec.  63.1211(d) shall be complied with 
instead of Sec.  63.8(c)(3); and
* * * * *
    (iv) * * *
    (D) To remain in compliance, all six-minute block averages must not 
exceed the opacity standard.
    (v) * * *
    (D) To remain in compliance, all six-minute block averages must not 
exceed the opacity standard.
* * * * *
    (f) * * *
    (1) Section 63.8(c)(3). The requirements of Sec.  63.1211(d), that 
requires CMSs to be installed, calibrated, and operational on the 
compliance date, shall be complied with instead of Sec.  63.8(c)(3).
* * * * *
    (g) * * *
    (1) Requests to use alternatives to operating parameter monitoring 
requirements. (i) You may submit an application to the Administrator or 
State with an approved Title V program under this paragraph for 
approval of alternative operating parameter monitoring requirements to 
document compliance with the emission standards of this subpart. For 
requests to use additional CEMS, however, you must use paragraph (a)(5) 
of this section and Sec.  63.8(f).
* * * * *
    (k) * * *
    (1) * * * (i) For sources other than a lightweight aggregate kiln, 
if the combustor is equipped with an electrostatic precipitator, 
baghouse (fabric filter), or other dry emissions control device where 
particulate matter is suspended in contact with combustion gas, you 
must establish a limit on the maximum temperature of the gas at the 
inlet to the device on an hourly rolling average. You must establish 
the hourly rolling average limit as the average of the test run averages.
* * * * *
    (2) * * * (i) For sources other than cement kilns, you must measure the

[[Page 21367]]

temperature of each combustion chamber at a location that best 
represents, as practicable, the bulk gas temperature in the combustion 
zone. You must document the temperature measurement location in the 
test plan you submit under Sec. Sec.  63.1207(e) and (f);
* * * * *
    (l) * * *
    (1) Feedrate of mercury. (i) For incinerators, cement kilns, and 
lightweight aggregate kilns, when complying with the mercury emission 
standards under Sec. Sec.  63.1203, 63.1204, and 63.1205, and for solid 
fuel-fired boilers, you must establish a 12-hour rolling average limit 
for the total feedrate of mercury in all feedstreams as the average of 
the test run averages.
    (ii) For incinerators, cement kilns, and lightweight aggregate 
kilns, when complying with the mercury emission standards under 
Sec. Sec.  63.1219, 63.1220, and 63.1221, you must establish an annual 
rolling average limit for the total feedrate of mercury in all 
feedstreams as follows:
    (A) You must calculate a mercury system removal efficiency for each 
test run as [1--mercury emission rate (g/s) / mercury feedrate (g/s)], 
and calculate the average system removal efficiency of the test run 
averages, except if your source is not equipped with a control system 
that consistently and reproducibly controls mercury emissions, you must 
assume zero system removal efficiency. If emissions exceed the mercury 
emission standard, it is not a violation because compliance with these 
mercury emission standards, which are derived from normal emissions 
data, is based on compliance with the mercury feedrate limit on an 
annual rolling average.
    (B) You must calculate the annual average mercury feedrate limit as 
the mercury emission standard ([mu]g/m \3\) divided by the system 
removal efficiency. The feedrate limit is expressed as an emission 
concentration, [mu]g mercury/m \3\ of stack gas.
    (C) You must comply with the emission concentration-based annual 
average mercury feedrate limit by measuring the mercury feedrate (g/s) 
and the stack gas flowrate (m \3\/s) at least once a minute to 
calculate a 60-minute average emission concentration-based feedrate as 
[mercury feedrate (g/s) / gas flowrate (m \3\/s)].
    (D) You must calculate an annual rolling average mercury feedrate 
that is updated each hour.
    (iii) For liquid fuel-fired boilers, you must establish an annual 
rolling average hazardous waste mercury thermal concentration limit, as 
follows:
    (A) You must calculate a mercury system removal efficiency for each 
test run as [1--mercury emission rate (g/s) / mercury feedrate (g/s)], 
and calculate the average system removal efficiency of the test run 
averages, except if your source is not equipped with a control system 
that consistently and reproducibly controls mercury emissions, you must 
assume zero system removal efficiency. If emissions exceed the mercury 
emission standard, it is not a violation because compliance with the 
mercury emission standard, which is derived from normal emissions data, 
is based on compliance with the hazardous waste mercury thermal 
concentration limit on an annual rolling average.
    (B) You must calculate the annual average hazardous waste mercury 
thermal concentration limit as the mercury emission standard (lb/MM 
Btu) divided by the system removal efficiency. The hazardous waste 
thermal concentration limit is expressed as: lb mercury in hazardous 
waste feedstreams per million Btu of hazardous waste.
    (C) You must comply with the annual average hazardous waste mercury 
thermal concentration limit by measuring the feedrate of mercury in all 
hazardous waste feedstreams (lb/s) and the hazardous waste thermal 
feedrate (MM Btu/s) at least once a minute to calculate a 60-minute 
average thermal emission concentration as [hazardous waste mercury 
feedrate (g/s) / hazardous waste thermal feedrate (MM Btu/s)].
    (D) You must calculate an annual rolling average hazardous waste 
mercury thermal concentration that is updated each hour.
    (iv) Extrapolation of feedrate levels. (A) In lieu of establishing 
mercury feedrate limits as specified in paragraphs (l)(1)(i) through 
(iii) of this section, you may request as part of the performance test 
plan under Sec. Sec.  63.6(b) and (c) and Sec. Sec.  63.1207 (e) and 
(f) to use the mercury feedrates and associated emission rates during 
the comprehensive performance test to extrapolate to higher allowable 
feedrate limits and emission rates. The extrapolation methodology will 
be reviewed and approved, as warranted, by the Administrator. The 
review will consider in particular whether:
    (1) Performance test metal feedrates are appropriate (i.e., whether 
feedrates are at least at normal levels; depending on the heterogeneity 
of the waste, whether some level of spiking would be appropriate; and 
whether the physical form and species of spiked material is 
appropriate); and
    (2) Whether the extrapolated feedrates you request are warranted 
considering historical metal feedrate data.
    (B) The Administrator will review the performance test results in 
making a finding of compliance required by Sec. Sec.  63.6(f)(3) and 
63.1206(b)(3) to ensure that you have interpreted the performance test 
results properly and the extrapolation procedure is appropriate for 
your source.
* * * * *
    (m) * * *
    (1) * * *
    (iv) Other particulate matter control devices. For each particulate 
matter control device that is not a fabric filter or high energy wet 
scrubber, or is not an electrostatic precipitator or ionizing wet 
scrubber for which you elect to monitor particulate matter loadings 
under Sec.  63.1206(c)(7)(iii) of this chapter for process control, you 
must ensure that the control device is properly operated and maintained 
as required by Sec.  63.1206(c)(7) and by monitoring the operation of 
the control device as follows:
* * * * *
    (n) * * *
    (2) Maximum feedrate of semivolatile and low volatile metals--(i) 
General. You must establish feedrate limits for semivolatile metals 
(cadmium and lead) and low volatile metals (arsenic, beryllium, and 
chromium) as follows, except as provided by paragraph (n)(2)(vii) of 
this section.
    (ii) For incinerators, cement kilns, and lightweight aggregate 
kilns, when complying with the emission standards under Sec. Sec.  
63.1203, 63.1204, 63.1205, and 63.1219 and for solid fuel-fired 
boilers, you must establish 12-hour rolling average limits for the 
total feedrate of semivolatile and low volatile metals in all 
feedstreams as the average of the test run averages and as specified in 
paragraph (n)(2)(iv) of this section.
    (iii) For cement kilns, when complying with the emission standards 
under Sec.  63.1220, you must establish 12-hour rolling average 
feedrate limits for semivolatile and low volatile metals as the thermal 
concentration of semivolatile metals or low volatile metals in all 
hazardous waste feedstreams. You must calculate hazardous waste thermal 
concentrations for semivolatile metals and low volatile metals for each 
run as the total mass feedrate of semivolatile metals or low volatile 
metals for all hazardous waste feedstreams divided by the total heat 
input rate for all hazardous waste feedstreams. The 12-hour rolling 
average feedrate limits for semivolatile metals and low volatile metals 
are the

[[Page 21368]]

average of the hazardous waste thermal concentrations for the runs.
    (iv) Lightweight aggregate kilns under Sec.  63.1221--(A) Existing 
sources. When complying with the emission standards under Sec.  
63.1221, you must establish semivolatile metal and low volatile metal 
feedrate limits as 12-hour rolling average feedrate limits and 12-hour 
rolling average hazardous waste thermal concentrations as specified in 
paragraphs (n)(2)(ii) and (iii). You must comply with both feedrate 
limits for semivolatile metals and low volatile metals.
    (B) New sources. When complying with the emission standards under 
Sec.  63.1221, you must establish semivolatile metal and low volatile 
metal feedrate limits as 12-hour rolling average hazardous waste 
thermal concentrations as specified in paragraphs (n)(2)(ii) and (iii).
    (v) Liquid fuel-fired boilers. (A) For semivolatile metals, you 
must establish an annual rolling average hazardous waste thermal 
concentration limit, as follows:
    (1) You must calculate a semivolatile metals system removal 
efficiency for each test run as [1--semivolatile metals emission rate 
(g/s) / semivolatile metals feedrate (g/s)], and calculate the average 
system removal efficiency of the test run averages, except if your 
source is not equipped with a control system that consistently and 
reproducibly controls semivolatile metals emissions, you must assume 
zero system removal efficiency. If emissions exceed the semivolatile 
metals emission standard, it is not a violation because compliance with 
the semivolatile metals emission standard, which is derived from normal 
emissions data, is based on compliance with the semivolatile metals 
hazardous waste thermal concentration limit on an annual rolling average.
    (2) You must calculate the annual average hazardous waste 
semivolatile metals thermal concentration limit as the semivolatile 
metals emission standard (lb/MM Btu) divided by the system removal 
efficiency. The hazardous waste thermal concentration limit is 
expressed as: pounds semivolatile metals in hazardous waste feedstreams 
per million Btu of hazardous waste.
    (3) You must comply with the annual average hazardous waste 
semivolatile metals thermal concentration limit by measuring the 
feedrate of semivolatile metals in all hazardous waste feedstreams (lb/
s) and the hazardous waste thermal feedrate (MM Btu/s) at least once a 
minute to calculate a 60-minute average thermal emission concentration 
as [hazardous waste semivolatile metals feedrate (g/s) / hazardous 
waste thermal feedrate (MM Btu/s)].
    (4) You must calculate an annual rolling average hazardous waste 
semivolatile metals thermal concentration that is updated each hour.
    (B) For low volatile metals, you must establish 12-hour rolling 
average feedrate limits for chromium as the thermal concentration of 
chromium in all hazardous waste feedstreams. You must calculate a 
hazardous waste thermal concentration for chromium for each run as the 
total mass feedrate of chromium for all hazardous waste feedstreams 
divided by the total heat input rate for all hazardous waste 
feedstreams. The 12-hour rolling average feedrate limit for chromium is 
the average of the hazardous waste thermal concentrations for the runs.
    (vi) LVM limits for pumpable wastes. You must establish separate 
feedrate limits for low volatile metals in pumpable feedstreams using 
the procedures prescribed above for total low volatile metals. Dual 
feedrate limits for both pumpable and total feedstreams are not 
required, however, if you base the total feedrate limit solely on the 
feedrate of pumpable feedstreams.
    (vii) Extrapolation of feedrate levels. In lieu of establishing 
feedrate limits as specified in paragraphs (l)(1)(i) through (iii) of 
this section, you may request as part of the performance test plan 
under Sec. Sec.  63.6(b) and (c) and 63.1207(e) and (f) to use the 
semivolatile metal and low volatile metal feedrates and associated 
emission rates during the comprehensive performance test to extrapolate 
to higher allowable feedrate limits and emission rates. The 
extrapolation methodology will be reviewed and approved, as warranted, 
by the Administrator. The review will consider in particular whether:
    (A) Performance test metal feedrates are appropriate (i.e., whether 
feedrates are at least at normal levels; depending on the heterogeneity 
of the waste, whether some level of spiking would be appropriate; and 
whether the physical form and species of spiked material is 
appropriate);
    (B) Whether the extrapolated feedrates you request are warranted 
considering historical metal feedrate data; and
    (C) Whether you have interpreted the performance test results 
properly and the extrapolation procedure is appropriate for your source.
* * * * *
    (o) * * *
    (1) Feedrate of total chlorine and chloride--(i) Incinerators, 
cement kilns, lightweight aggregate kilns, solid fuel-fired boilers, 
and hydrochloric acid production furnaces. You must establish 12-hour 
rolling average limit for the total feedrate of chlorine (organic and 
inorganic) in all feedstreams as the average of the test run averages.
    (ii) Liquid fuel-fired boilers. You must establish a 12-hour 
rolling average limit for the feedrate of chlorine (organic and 
inorganic) as the thermal concentration of chlorine in all hazardous 
waste feedstreams. You must calculate a hazardous waste thermal 
concentration for chlorine for each run as the total mass feedrate of 
chlorine for all hazardous waste feedstreams divided by the total heat 
input rate for all hazardous waste feedstreams. The 12-hour rolling 
average feedrate limit chlorine is the average of the hazardous waste 
thermal concentrations for the runs.
* * * * *
    (q) * * *
    (1) * * *
    (ii) You must specify (e.g., by reference) the otherwise applicable 
requirements as a mode of operation in your Documentation of Compliance 
under Sec.  63.1211(d), your Notification of Compliance under Sec.  
63.1207(j), and your title V permit application. These requirements 
include the otherwise applicable requirements governing emission 
standards, monitoring and compliance, and notification, reporting, and 
recordkeeping.
* * * * *
    8. Section 63.1210 is amended by:
    a. Revising the table in paragraph (a)(1) and the table in 
paragraph (a)(2).
    b. Redesignating paragraph (b) as (d).
    c. Adding new paragraph (b).
    d. Adding new paragraph (c).
    The revisions and additions read as follows:

Sec.  63.1210  What are the notification requirements?

    (a) * * *
    (1) * * *

------------------------------------------------------------------------
             Reference                          Notification
------------------------------------------------------------------------
63.9(b)...........................  Initial notifications that you are
                                     subject to subpart EEE of this
                                     part.
63.9(d)...........................  Notification that you are subject to
                                     special compliance requirements.

[[Page 21369]]


63.9(j)...........................  Notification and documentation of
                                     any change in information already
                                     provided under Sec.   63.9.
63.1206(b)(5)(i)..................  Notification of changes in design,
                                     operation, or maintenance.
63.1206(c)(7)(ii)(C)..............  Notification of excessive bag leak
                                     detection system exceedances.
63.1207(e), 63.9(e), 63.9(g)(1)     Notification of performance test and
 and (3).                            continuous monitoring system
                                     evaluation, including the
                                     performance test plan and CMS
                                     performance evaluation plan.\1\
63.1210(d), 63.1207(j),             Notification of compliance,
 63.1207(k), 63.1207(l), 63.9(h),    including results of performance
 63.10(d)(2), 63.10(e)(2).           tests and continuous monitoring
                                     system performance evaluations.
------------------------------------------------------------------------
\1\ You may also be required on a case-by-case basis to submit a
  feedstream analysis plan under Sec.   63.1209(c)(3).

    (2) * * *

------------------------------------------------------------------------
                                     Notification, request, petition, or
             Reference                           application
------------------------------------------------------------------------
63.9(i)...........................  You may request an adjustment to
                                     time periods or postmark deadlines
                                     for submittal and review of
                                     required information.
63.10(e)(3)(ii)...................  You may request to reduce the
                                     frequency of excess emissions and
                                     CMS performance reports.
63.10(f)..........................  You may request to waive
                                     recordkeeping or reporting
                                     requirements.
63.1204(d)(2)(iii),                 Notification that you elect to
 63.1220(d)(2)(iii).                 comply with the emission averaging
                                     requirements for cement kilns with
                                     in-line raw mills.
63.1204(e)(2)(iii),                 Notification that you elect to
 63.1220(e)(2)(iii).                 comply with the emission averaging
                                     requirements for preheater or
                                     preheater/precalciner kilns with
                                     dual stacks.
63.1206(b)(4), 63.1213, 63.6(i),    You may request an extension of the
 63.9(c).                            compliance date for up to one year.
63.1206(b)(5)(i)(C)...............  You may request to burn hazardous
                                     waste for more than 720 hours and
                                     for purposes other than testing or
                                     pretesting after a making a change
                                     in the design or operation that
                                     could affect compliance with
                                     emission standards and prior to
                                     submitting a revised Notification
                                     of Compliance.
63.1206(b)(8)(iii)(B).............  If you elect to conduct particulate
                                     matter CEMS correlation testing and
                                     wish to have federal particulate
                                     matter and opacity standards and
                                     associated operating limits waived
                                     during the testing, you must notify
                                     the Administrator by submitting the
                                     correlation test plan for review
                                     and approval.
63.1206(b)(8)(v)..................  You may request approval to have the
                                     particulate matter and opacity
                                     standards and associated operating
                                     limits and conditions waived for
                                     more than 96 hours for a
                                     correlation test.
63.1206(b)(9).....................  Owners and operators of lightweight
                                     aggregate kilns may request
                                     approval of alternative emission
                                     standards for mercury, semivolatile
                                     metal, low volatile metal, and
                                     hydrochloric acid/chlorine gas
                                     under certain conditions.
63.1206(b)(10)....................  Owners and operators of cement kilns
                                     may request approval of alternative
                                     emission standards for mercury,
                                     semivolatile metal, low volatile
                                     metal, and hydrochloric acid/
                                     chlorine gas under certain
                                     conditions.
63.1206(b)(14)....................  Owners and operators of incinerators
                                     may elect to comply with an
                                     alternative to the particulate
                                     matter standard.
63.1206(b)(15)....................  Owners and operators of cement and
                                     lightweight aggregate kilns may
                                     request to comply with the
                                     alternative to the interim
                                     standards for mercury.
63.1206(c)(2)(ii)(C)..............  You may request to make changes to
                                     the startup, shutdown, and
                                     malfunction plan.
63.1206(c)(5)(i)(C)...............  You may request an alternative means
                                     of control to provide control of
                                     combustion system leaks.
63.1206(c)(5)(i)(D)...............  You may request other techniques to
                                     prevent fugitive emissions without
                                     use of instantaneous pressure
                                     limits.
63.1207(c)(2).....................  You may request to base initial
                                     compliance on data in lieu of a
                                     comprehensive performance test.
63.1207(d)(3).....................  You may request more than 60 days to
                                     complete a performance test if
                                     additional time is needed for
                                     reasons beyond your control.
63.1207(e)(3), 63.7(h)............  You may request a time extension if
                                     the Administrator fails to approve
                                     or deny your test plan.
63.1207(h)(2).....................  You may request to waive current
                                     operating parameter limits during
                                     pretesting for more than 720 hours.
63.1207(f)(1)(ii)(D)..............  You may request a reduced hazardous
                                     waste feedstream analysis for
                                     organic hazardous air pollutants if
                                     the reduced analysis continues to
                                     be representative of organic
                                     hazardous air pollutants in your
                                     hazardous waste feedstreams.
63.1207(g)(2)(v)..................  You may request to operate under a
                                     wider operating range for a
                                     parameter during confirmatory
                                     performance testing.
63.1207(i)........................  You may request up to a one-year
                                     time extension for conducting a
                                     performance test (other than the
                                     initial comprehensive performance
                                     test) to consolidate testing with
                                     other state or federally-required
                                     testing.
63.1207(j)(4).....................  You may request more than 90 days to
                                     submit a Notification of Compliance
                                     after completing a performance test
                                     if additional time is needed for
                                     reasons beyond your control.
63.1207(l)(3).....................  After failure of a performance test,
                                     you may request to burn hazardous
                                     waste for more than 720 hours and
                                     for purposes other than testing or
                                     pretesting.
63.1209(a)(5), 63.8(f)............  You may request: (1) Approval of
                                     alternative monitoring methods for
                                     compliance with standards that are
                                     monitored with a CEMS; and (2)
                                     approval to use a CEMS in lieu of
                                     operating parameter limits.
63.1209(g)(1).....................  You may request approval of: (1)
                                     Alternatives to operating parameter
                                     monitoring requirements, except for
                                     standards that you must monitor
                                     with a continuous emission
                                     monitoring system (CEMS) and except
                                     for requests to use a CEMS in lieu
                                     of operating parameter limits; or
                                     (2) a waiver of an operating
                                     parameter limit.
63.1209(l)(1).....................  You may request to extrapolate
                                     mercury feedrate limits.
63.1209(n)(2).....................  You may request to extrapolate
                                     semivolatile and low volatile metal
                                     feedrate limits.
63.1211(e)........................  You may request to use data
                                     compression techniques to record
                                     data on a less frequent basis than
                                     required by Sec.   63.1209.
------------------------------------------------------------------------


[[Page 21370]]

    (b) Notification of intent to comply (NIC). (1) You must prepare a 
Notification of Intent to Comply that includes all of the following 
information:
    (i) General information:
    (A) The name and address of the owner/operator and the source;
    (B) Whether the source is a major or an area source;
    (C) Waste minimization and emission control technique(s) being 
considered;
    (D) Emission monitoring technique(s) you are considering;
    (E) Waste minimization and emission control technique(s) 
effectiveness;
    (F) A description of the evaluation criteria used or to be used to 
select waste minimization and/or emission control technique(s); and
    (G) A general description of how you intend to comply with the 
emission standards of this subpart.
    (ii) As applicable to each source, information on key activities 
and estimated dates for these activities that will bring the source 
into compliance with emission control requirements of this subpart. You 
must include all of the following key activities and dates in your NIC:
    (A) The dates by which you will develop engineering designs for 
emission control systems or process changes for emissions;
    (B) The date by which you will commit internal or external 
resources for installing emission control systems or making process 
changes for emission control, or the date by which you will issue 
orders for the purchase of component parts to accomplish emission 
control or process changes.
    (C) The date by which you will submit construction applications;
    (D) The date by which you will initiate on-site construction, 
installation of emission control equipment, or process change;
    (E) The date by which you will complete on-site construction, 
installation of emission control equipment, or process change; and
    (F) The date by which you will achieve final compliance. The 
individual dates and milestones listed in paragraphs (b)(1)(ii)(A) 
through (F) of this section as part of the NIC are not requirements and 
therefore are not enforceable deadlines; the requirements of paragraphs 
(b)(1)(ii)(A) through (F) of this section must be included as part of 
the NIC only to inform the public of your how you intend to comply with 
the emission standards of this subpart.
    (iii) A summary of the public meeting required under paragraph (c) 
of this section;
    (iv) If you intend to cease burning hazardous waste prior to or on 
the compliance date, you must include in your NIC a schedule of key 
dates for the steps to be taken to stop hazardous waste activity at 
your combustion unit. Key dates include the date for submittal of RCRA 
closure documents required under subpart G, part 264 of this chapter.
    (2) You must make a draft of the NIC available for public review no 
later than 30 days prior to the public meeting required under paragraph 
(c)(1) of this section.
    (3) You must submit the final NIC to the Administrator no later 
than one year following the effective date of the emission standards of 
this subpart.
    (c) NIC public meeting and notice. (1) Prior to the submission of 
the NIC to the permitting agency, and no later than 10 months after the 
effective date of the emission standards of this subpart, you must hold 
at least one informal meeting with the public to discuss anticipated 
activities described in the draft NIC for achieving compliance with the 
emission standards of this subpart. You must post a sign-in sheet or 
otherwise provide a voluntary opportunity for attendees to provide 
their names and addresses;
    (2) You must submit a summary of the meeting, along with the list 
of attendees and their addresses developed under paragraph (b)(1) of 
this section, and copies of any written comments or materials submitted 
at the meeting, to the Administrator as part of the final NIC, in 
accordance with paragraph (b)(1)(iii) of this section;
    (3) You must provide public notice of the NIC meeting at least 30 
days prior to the meeting. You must provide public notice in all of the 
following forms:
    (i) Newspaper advertisement. You must publish a notice in a 
newspaper of general circulation in the county or equivalent 
jurisdiction of your facility. In addition, you must publish the notice 
in newspapers of general circulation in adjacent counties or equivalent 
jurisdiction where such publication would be necessary to inform the 
affected public. You must publish the notice as a display 
advertisement.
    (ii) Visible and accessible sign. You must post a notice on a 
clearly marked sign at or near the source. If you place the sign on the 
site of the hazardous waste combustor, the sign must be large enough to 
be readable from the nearest spot where the public would pass by the 
site.
    (iii) Broadcast media announcement. You must broadcast a notice at 
least once on at least one local radio station or television station.
    (iv) Notice to the facility mailing list. You must provide a copy 
of the notice to the facility mailing list in accordance with Sec.  
124.10(c)(1)(ix) of this chapter.
    (4) You must include all of the following in the notices required 
under paragraph (c)(3) of this section:
    (i) The date, time, and location of the meeting;
    (ii) A brief description of the purpose of the meeting;
    (iii) A brief description of the source and proposed operations, 
including the address or a map (e.g., a sketched or copied street map) 
of the source location;
    (iv) A statement encouraging people to contact the source at least 
72 hours before the meeting if they need special access to participate 
in the meeting;
    (v) A statement describing how the draft NIC (and final NIC, if 
requested) can be obtained; and
    (vi) The name, address, and telephone number of a contact person 
for the NIC.
    9. Section 63.1211 is amended by:
    a. Revising the table in paragraph (b).
    b. Redesignating paragraphs (c) and (d) as (d) and (e).
    c. Adding new paragraph (c).
    The revisions and additions read as follows:

Sec.  63.1211  What are the recordkeeping and reporting requirements?

* * * * *
    (b) * * *

------------------------------------------------------------------------
             Reference                 Document, data, or information
------------------------------------------------------------------------
63.1200, 53.10 (b) and (c)........  General. Information required to
                                     document and maintain compliance
                                     with the regulations of subpart
                                     EEE, including data recorded by
                                     continuous monitoring systems
                                     (CMS), and copies of all
                                     notifications, reports, plans, and
                                     other documents submitted to the
                                     Administrator.
63.1204(d)(1)(ii),                  Documentation of mode of operation
 63.1220(d)(1)(ii).                  changes for cement kilns with in-
                                     line raw mills.
63.1204(d)(2)(ii),                  Documentation of compliance with the
 63.1220(d)(2)(ii).                  emission averaging requirements for
                                     cement kilns with in-line raw
                                     mills.
63.1204(e)(2)(ii),                  Documentation of compliance with the
 63.1220(e)(2)(ii).                  emission averaging requirements for
                                     preheater or preheater/precalciner
                                     kilns with dual stacks.

[[Page 21371]]

63.1206(b)(1)(ii).................  If you elect to comply with all
                                     applicable requirements and
                                     standards promulgated under
                                     authority of the Clean Air Act,
                                     including sections 112 and 129, in
                                     lieu of the requirements of subpart
                                     EEE when not burning hazardous
                                     waste, you must document in the
                                     operating record that you are in
                                     compliance with those requirements.
63.1206(b)(5)(ii).................  Documentation that a change will not
                                     adversely affect compliance with
                                     the emission standards or operating
                                     requirements.
63.1206(b)(11)....................  Calculation of hazardous waste
                                     residence time.
63.1206(c)(2).....................  Startup, shutdown, and malfunction
                                     plan.
63.1206(c)(2)(v)(A)...............  Documentation of your investigation
                                     and evaluation of excessive
                                     exceedances during malfunctions.
63.1206(c)(3)(v)..................  Corrective measures for any
                                     automatic waste feed cutoff that
                                     results in an exceedance of an
                                     emission standard or operating
                                     parameter limit.
63.1206(c)(3)(vii)................  Documentation and results of the
                                     automatic waste feed cutoff
                                     operability testing.
63.1206(c)(4)(ii).................  Emergency safety vent operating
                                     plan.
63.1206(c)(4)(iii)................  Corrective measures for any
                                     emergency safety vent opening.
63.1206(c)(5)(ii).................  Method used for control of
                                     combustion system leaks.
63.1206(c)(6).....................  Operator training and certification
                                     program.
63.1206(c)(7)(i)(D)...............  Operation and maintenance plan.
63.1209(c)(2).....................  Feedstream analysis plan.
63.1209(k)(6)(iii),                 Documentation that a substitute
 63.1209(k)(7)(ii),                  activated carbon, dioxin/furan
 63.1209(k)(9)(ii),                  formation reaction inhibitor, or
 63.1209(o)(4)(iii).                 dry scrubber sorbent will provide
                                     the same level of control as the
                                     original material.
63.1209(k)(7)(i)(C)...............  Results of carbon bed performance
                                     monitoring.
63.1209(q)........................  Documentation of changes in modes of
                                     operation.
63.1211(d)........................  Documentation of compliance.
------------------------------------------------------------------------

    (c) Compliance progress reports associated with the notification of 
intent to comply--(1) General. Not later than two years following the 
effective date of the emission standards of this subpart, you must 
comply with the following, unless you comply with paragraph (c)(2)(ii) 
of this section:
    (i) Develop engineering design for any physical modifications to 
the source needed to comply with the emission standards of this 
subpart;
    (ii) Submit applicable construction applications to the 
Administrator; and
    (iii) Document an internal or external commitment of resources, 
i.e., funds or personnel, to purchase, fabricate, and install any 
equipment, devices, and ancillary structures needed to comply with the 
emission standards and operating requirements of this subpart.
    (2) Progress report. (i) You must submit to the Administrator a 
progress report not later than two years following the effective date 
of the emission standards of this subpart, which contains information 
documenting that you have met the requirements of paragraph (c)(1) of 
this section and updates the information you previously provided in 
your NIC. This information will be used by the Administrator to 
determine if you have made adequate progress towards compliance with 
the emission standards of this subpart. In any evaluation of adequate 
progress, the Administrator may consider any delays in a source's 
progress caused by the time required to obtain necessary permits (e.g., 
operating and construction permits or licenses) from governmental 
regulatory agencies when the sources have submitted timely and complete 
permit applications.
    (ii) If you can comply with the emission standards and operating 
requirements of this subpart, without undertaking any of the activities 
described in paragraph (c)(1) of this section, you must submit a 
progress report documenting either:
    (A) That you, at the time of the progress report, are in compliance 
with the emission standards and operating requirements; or
    (B) The steps you will take to comply, without undertaking any of 
the activities listed in paragraphs (c)(1)(i) through (c)(1)(iii) of 
this section.
    (3) Schedule. (i) You must include in the progress report a 
detailed schedule that lists key dates for all projects that will bring 
the source into compliance with the emission standards and operating 
requirements of this subpart for the time period between submission of 
the progress report and the compliance date of the emission standards 
and operating requirements of this subpart.
    (ii) The schedule must contain anticipated or actual dates for all 
of the following:
    (A) Bid and award dates, as necessary, for construction contracts 
and equipment supply contractors;
    (B) Milestones such as ground breaking, completion of drawings and 
specifications, equipment deliveries, intermediate construction 
completions, and testing;
    (C) The dates on which applications will be submitted for operating 
and construction permits or licenses;
    (D) The dates by which approvals of any operating and construction 
permits or licenses are anticipated; and
    (E) The projected date by which you expect to comply with the 
emission standards and operating requirements of this subpart.
    (4) Sources that intend to cease burning hazardous waste prior to 
or on the compliance date. (i) If you indicated in your NIC your intent 
to cease burning hazardous waste and do so prior to submitting a 
progress report, you are exempt from the requirements of paragraphs 
(c)(1) through (c)(3) of this section. However, you must submit and 
include in your progress report the date on which you stopped burning 
hazardous waste and the date(s) you submitted, or plan to submit RCRA 
closure documents.
    (ii) If you signify in the progress report, submitted not later 
than two years following the effective date of the emission standards 
of this subpart, your intention to cease burning hazardous waste, you 
must stop burning hazardous waste on or before the compliance date of 
the emission standards of this subpart.
* * * * *
    10. Section 63.1212 is added to subpart EEE to read as follows:

Sec.  63.1212  What are the other requirements pertaining to the NIC 
and associated progress report?

    (a) Certification of intent to comply. (1) The Notice of Intent to 
Comply (NIC) and Progress Report must contain the following 
certification signed and dated by an authorized representative of the 
source: ``I certify under penalty of law that I have personally 
examined and am

[[Page 21372]]

familiar with the information submitted in this document and all 
attachments and that, based on my inquiry of those individuals 
immediately responsible for obtaining the information, I believe that 
the information is true, accurate, and complete. I am aware that there 
are significant penalties for submitting false information, including 
the possibility of fine and imprisonment''.
    (2) An authorized representative should be a responsible corporate 
officer (for a corporation), a general partner (for a partnership), the 
proprietor (of a sole proprietorship), or a principal executive officer 
or ranking elected official (for a municipality, State, Federal, or 
other public agency).
    (b) Sources that begin burning hazardous waste after the effective 
date of the emission standards of this subpart. (1) If you begin to 
burn hazardous waste after the effective date of the emission standards 
of this subpart, but prior to nine months after the effective date of 
the emission standards of this subpart, you must comply with the 
requirements of Sec. Sec.  63.1206(a)(2), 63.1210(b) and (c), 
63.1211(c), and paragraph (a) of this section, and associated time 
frames for public meetings and document submittals.
    (2) If you intend to begin burning hazardous waste more than nine 
months after the effective date of the emission standards of this 
subpart, you must comply with the requirements of Sec. Sec.  
63.1206(a)(2), 63.1210(b) and (c), 63.1211(c), and paragraph (a) of 
this section prior to burning hazardous waste. In addition:
    (i) You must make a draft NIC available to the public, notice the 
public meeting, conduct a public meeting, and submit a final NIC prior 
to burning hazardous waste; and
    (ii) You must submit your progress report at the time you submit 
your final NIC.
    11. Section 63.1214 is amended by revising paragraphs (c)(1), 
(c)(2), (c)(3), and (c)(4) to read as follows:

Sec.  63.1214  Implementation and enforcement.

* * * * *
    (c) * * *
    (1) Approval of alternatives to requirements in Sec. Sec.  63.1200, 
63.1203, 63.1204, 63.1205, 63.1206(a), 63.1215, 63.1216, 63.1217, 
63.1218, 63.1219, 63.1220, and 63.1221.
    (2) Approval of major alternatives to test methods under Sec. Sec.  
63.7(e)(2)(ii) and (f), 63.1208(b), and 63.1209(a)(1), as defined in 
Sec.  63.90, and as required in this subpart.
    (3) Approval of major alternatives to monitoring under Sec. Sec.  
63.8(f) and 63.1209(a)(5), as defined in Sec.  63.90, and as required 
in this subpart.
    (4) Approval of major alternatives to recordkeeping and reporting 
under Sec. Sec.  63.10(f) and 63.1211(a) through (d), as defined in 
Sec.  63.90, and as required in this subpart.
    12. Section Sec.  63.1215 is added to subpart EEE to read as follows:

Sec.  63.1215  What are the alternative risk-based standards for total 
chlorine?

    (a) General. You may establish and comply with site-specific, risk-
based emission limits for total chlorine under the procedures 
prescribed in this section. You may comply with these risk-based 
emission limits in lieu of the emission standards for total chlorine 
provided under Sec. Sec.  63.1216, 63.1217, 63.1219, 63.1220, and 
63.1221 of this chapter after review and approval by the permitting 
authority. To identify and comply with the limits, you must:
    (1) Identify hydrogen chloride and chlorine gas emission rates for 
each on-site hazardous waste combustor. You may select hydrogen 
chloride and chlorine gas emission rates as you choose to demonstrate 
eligibility for the total chlorine standards under this section, except 
as provided by paragraph (b)(4) of this section;
    (2) Perform an eligibility demonstration to determine if your HCl-
equivalent emission rate limits meet the national exposure standards, 
as prescribed by paragraphs (b) and (c) of this section;
    (3) Submit your eligibility demonstration for review and approval, 
as prescribed by paragraph (d) of this section;
    (4) Demonstrate compliance with the HCl-equivalent emission rate 
limits, as prescribed by the testing and monitoring requirements under 
paragraph (e) of this section; and
    (5) Comply with the requirements for changes, as prescribed by 
paragraph (f) of this section.
    (b) HCl-equivalent emission rates. (1) You must establish a total 
chlorine limit for each hazardous waste combustor as an HCl-equivalent 
emission rate.
    (2) You must calculate the toxicity-weighted HCl-equivalent 
emission rate for each combustor as follows:

    ERtw = [sum](ERi x (RfCHCl/
RfCi))

Where:

ERtw is the HCl-equivalent emission rate, lb/hr
ERi is the emission rate of HAP i in lbs/hr
RfCi is the reference concentration of HAP i
RfCHCl is the reference concentration of HCl

    (3) You must use the RfC values for hydrogen chloride and chlorine 
gas found at http://epa.gov/ttn/atw/toxsource/summary.html.
    (4) The hydrogen chloride and chlorine gas emission rates you use 
to calculate the HCl-equivalent emission rate limit for incinerators, 
cement kilns, and lightweight aggregate kilns must not result in total 
chlorine emission concentrations exceeding the standards provided by 
Sec. Sec.  63.1203, 63.1204, and 63.1205.
    (c) Eligibility demonstration--(1) General. You must perform an 
eligibility demonstration to determine whether your selected hydrogen 
chloride and chlorine gas emission rates meet the national exposure 
standards using either a look-up table analysis prescribed by paragraph 
(c)(3) of this section, or a site-specific compliance demonstration 
prescribed by paragraph (c)(4) of this section.
    (2) Definition of eligibility. Your facility is eligible for the 
alternative risk-based standards for total chlorine if either:
    (i) The sum of the calculated HCl-equivalent emission rates for all 
on-site hazardous waste combustors is below the appropriate value in 
the look-up table; or
    (ii) Your site-specific compliance demonstration indicates that 
your maximum Hazard Index for hydrogen chloride and chlorine gas 
emissions from all on-site hazardous waste combustors at a location 
where people live is less than or equal to 1.0, rounded to the nearest 
tenths decimal place (0.1).
    (3) Look-up table analysis. (i) The look-up table is provided as 
Table 1 to this section.
    (ii) To determine the correct HCl-equivalent emission rate value 
from the look-up table, you must use the average stack height for your 
hazardous waste combustors (i.e., the mean of the stack height of all 
on-site hazardous waste combustors) and the minimum distance between 
any hazardous waste combustor stack and the property boundary.
    (iii) If one or both of these values for stack height and distance 
to nearest property boundary do not match the exact values in the look-
up table, you would use the next lowest table value.
    (iv) You are not eligible for the look-up table analysis if your 
facility is located in complex terrain.
    (v) If the sum of the calculated HCl-equivalent emission rates for 
all on-site hazardous waste combustors is below the appropriate value 
in the look-up

[[Page 21373]]

table, the emission limit for total chlorine for each combustor is the 
HCl-equivalent emission rate you calculated.
    (4) Site-specific compliance demonstration. (i) You may use any 
scientifically-accepted peer-reviewed risk assessment methodology for 
your site-specific compliance demonstration. An example of one approach 
for performing the demonstration for air toxics can be found in the 
EPA's ``Air Toxics Risk Assessment Reference Library, Volume 2, Site-
Specific Risk Assessment Technical Resource Document,'' which may be 
obtained through the EPA's Air Toxics Web site at 
http://www.epa.gov/ttn/atw.
    (ii) Your facility is eligible for the alternative risk-based total 
chlorine emission limit if your site-specific compliance demonstration 
shows that the maximum Hazard Index for hydrogen chloride and chlorine 
gas emissions from each on-site hazardous waste combustor is less than 
or equal to 1.0 rounded to the nearest tenths decimal place (0.1).
    (iii) At a minimum, your site-specific compliance demonstration must:
    (A) Estimate long-term inhalation exposures through the estimation 
of annual or multi-year average ambient concentrations;
    (B) Estimate the inhalation exposure for the actual individual most 
exposed to the facility's emissions from hazardous waste combustors;
    (C) Use site-specific, quality-assured data wherever possible;
    (D) Use health-protective default assumptions wherever site-
specific data are not available, and:
    (E) Contain adequate documentation of the data and methods used for 
the assessment so that it is transparent and can be reproduced by an 
experienced risk assessor and emissions measurement expert.
    (iv) Your site-specific compliance demonstration need not:
    (A) Assume any attenuation of exposure concentrations due to the 
penetration of outdoor pollutants into indoor exposure areas;
    (B) Assume any reaction or deposition of the emitted pollutants 
during transport from the emission point to the point of exposure.
    (v) If your site-specific compliance demonstration documents that 
the maximum Hazard Index for hydrogen chloride and chlorine gas 
emissions from your hazardous waste combustors is less than or equal to 
1.0, you would establish a maximum HCl-equivalent emission rate limit 
for each combustor based on the hydrogen chloride and chlorine gas 
emission rates used in this site-specific compliance demonstration.
    (d) Review and approval of eligibility demonstrations--(1) Content 
of the eligibility demonstration--(i) General. The eligibility 
demonstration must include the following information, at a minimum:
    (A) Identification of each hazardous waste combustor combustion gas 
emission point (e.g., generally, the flue gas stack);
    (B) The maximum capacity at which each combustor will operate, and 
the maximum rated capacity for each combustor, using the metric of 
stack gas volume emitted per unit of time, as well as any other metric 
that is appropriate for the combustor (e.g., million Btu/hr heat input 
for boilers; tons of dry raw material feed/hour for cement kilns);
    (C) Stack parameters for each combustor, including, but not limited 
to stack height, stack area, stack gas temperature, and stack gas exit 
velocity;
    (D) Plot plan showing all stack emission points, nearby residences, 
and property boundary line;
    (E) Identification of any stack gas control devices used to reduce 
emissions from each combustor;
    (F) Identification of the RfC values used to calculate the HCl-
equivalent emissions rate;
    (G) Calculations used to determine the HCl-equivalent emission rate;
    (H) For incinerators, cement kilns, and lightweight aggregate 
kilns, calculations used to determine that the HCl-equivalent emission 
rate limit for each combustor does not exceed the standards for total 
chlorine at Sec. Sec.  63.1203, 63.1204, and 63.1205; and
    (I) The HCl-equivalent emission rate limit for each hazardous waste 
combustor that you will certify in the Documentation of Compliance 
required under Sec.  63.1211(d) that you will not exceed, and the 
limits on the operating parameters specified under Sec.  63.1209(o) 
that you will establish in the Documentation of Compliance.
    (ii) Additional content of look-up table demonstration. If you use 
the look-up table analysis, your eligibility demonstration must also 
contain, at a minimum, the following:
    (A) Calculations used to determine the average stack height of on-
site hazardous waste combustors;
    (B) Identification of the combustor stack with the minimum distance 
to the property boundary of the facility; and
    (C) Comparison of the values in the look-up table to your maximum 
HCl-equivalent emission rate.
    (iii) Additional content of a site-specific compliance 
demonstration. If you use a site-specific compliance demonstration, 
your eligibility demonstration must also contain, at a minimum, the 
following:
    (A) Identification of the risk assessment methodology used;
    (B) Documentation of the fate and transport model used;
    (C) Documentation of the fate and transport model inputs, including 
the stack parameters listed in paragraph (d)(1)(i)(C) of this section 
converted to the dimensions required for the model;
    (D) As applicable:
    (1) Meteorological data;
    (2) Building, land use, and terrain data;
    (3) Receptor locations and population data; and
    (4) Other facility-specific parameters input into the model;
    (E) Documentation of the fate and transport model outputs;
    (F) Documentation of any exposure assessment and risk 
characterization calculations; and,
    (G) Documentation of the predicted Hazard Index for HCl-equivalents 
and comparison to the limit of less than 1.0.
    (2) Review and approval--(i) Existing sources. (A) If you operate 
an existing source, you must be in compliance with the emission 
standards on the compliance date. If you elect to comply with the 
alternative risk-based emission rate limit for total chlorine, you must 
have completed the eligibility demonstration and received approval from 
your delegated permitting authority by the compliance date.
    (B) You must submit the eligibility demonstration to your 
permitting authority for review and approval not later than 12 months 
prior to the compliance date. You must submit a separate copy of the 
eligibility demonstration to: U.S. EPA, Risk and Exposure Assessment 
Group, Emission Standards Division (C404-01), Attn: Group Leader, 
Research Triangle Park, North Carolina 27711.
    (C) Your permitting authority will notify you of approval or intent 
to disapprove your eligibility demonstration within 6 months after 
receipt of the original demonstration, and within 3 months after 
receipt of any supplemental information that you submit. A notice of 
intent to disapprove your eligibility demonstration will identify 
incomplete or inaccurate information or noncompliance with prescribed 
procedures and specify how much time you will have to submit additional 
information.
    (D) If your permitting authority has not approved your eligibility 
demonstration to comply with a risk-based HCl-equivalent emission 
rate(s) by the compliance date, you must comply with the MACT emission

[[Page 21374]]

standards for total chlorine gas under Sec. Sec.  63.1216, 63.1217, 
63.1219, 63.1220, and 63.1221 of this chapter.
    (ii) New sources. General. (A) If you operate a source that is not 
an existing source and that becomes subject to subpart EEE, you must 
comply with the MACT emission standards for total chlorine unless and 
until your eligibility demonstration has been approved by the 
permitting authority.
    (B) If you operate a new or reconstructed source that starts up 
before the effective date of the emission standards proposed today, or 
a solid fuel-fired boiler or liquid fuel-fired boiler that is an area 
source that increases its emissions or its potential to emit such that 
it becomes a major source of HAP before the effective date of 
Sec. Sec.  63.1216 and 63.1217, you would be required to comply with 
the emission standards under Sec. Sec.  63.1216 and 63.1217 until your 
eligibility demonstration is approved by your permitting authority.
    (C) If you operate a new or reconstructed source that starts up 
after the effective date of the emission standards proposed today, or a 
solid fuel-fired boiler or liquid fuel-fired boiler that is an area 
source that increases its emissions or its potential to emit such that 
it becomes a major source of HAP after the effective date of Sec. Sec.  
63.1216 and 63.1217, you would be required to comply with the emission 
standards under Sec. Sec.  63.1216 and 63.1217 until your eligibility 
demonstration is approved by your permitting authority.
    (e) Testing and monitoring requirements--(1) General. You must 
document compliance during the comprehensive performance test under 
Sec.  63.1207 with the HCl-equivalent emission rate limit established 
in an approved eligibility demonstration for each hazardous waste 
combustor.
    (2) Test methods. (i) If you operate a cement kiln or a combustor 
equipped with a dry acid gas scrubber, you must should use EPA Method 
320/321 or ASTM D 6735-01, or an equivalent method, to measure hydrogen 
chloride, and the back-half (caustic impingers) of Method 26/26A, or an 
equivalent method, to measure chlorine gas.
    (ii) If you operate an incinerator, boiler, or lightweight 
aggregate kiln, you must use EPA Method 320/321 or ASTM D 6735-01, or 
an equivalent method, to measure hydrogen chloride, and Method 26/26A, 
or an equivalent method, to measure total chlorine, and calculate 
chlorine gas by difference if:
    (A) The bromine/chlorine ratio in feedstreams is greater than 5 
percent; or
    (B) The sulfur/chlorine ratio in feedstreams is greater than 50 percent.
    (3) Operating parameter limits. (i) You must establish limits on 
the same operating parameters that apply to sources complying with the 
MACT standard for total chlorine under Sec.  63.1209(o), except that 
feedrate limits on total chlorine and chloride must be established as 
specified under paragraph (e)(3)(ii) of this section.
    (ii) Annual rolling average feedrate. You must establish an annual 
rolling average feedrate limit for total chlorine and chloride as the 
average of the test run averages during the comprehensive performance 
test.
    (A) To document compliance with the feedrate limit, you must know 
the total chlorine and chloride concentration of feedstreams at all 
times and continuously monitor the flowrate of all feedstreams.
    (B) You must measure the flowrate of each feedstream at least once 
each minute and update the annual rolling average hourly based on the 
average of the 60 previous 1-minute measurements.
    (f) Changes--(1) Changes over which you have control. (i) Changes 
in design, operation, or maintenance of a hazardous waste combustor 
that may affect the rate of emissions of HCl-equivalents from the 
combustor are subject to the requirements of Sec.  63.1206(b)(5).
    (ii) If you change the information documented in the demonstration 
of eligibility for the HCl-equivalent emission rate limit and which is 
used to establish the HCl-equivalent emission rate limit, you are 
subject to the following requirements:
    (A) Changes that would decrease the allowable HCl-equivalent 
emission rate limit. If you plan to make a change that would decrease 
the allowable HCl-equivalent emission rate limit documented in your 
eligibility demonstration, you must comply with Sec.  
63.1206(b)(5)(i)(A)-(C);
    (B) Changes that would not decrease the allowable HCl-equivalent 
emission rate limit. (1) If you determine that a change would not 
decrease the allowable HCl-equivalent emission rate limit documented in 
your eligibility demonstration, you must document the change in the 
operating record upon making such change.
    (2) If the change would increase your allowable HCl-equivalent 
emission rate limit and you elect to establish a higher HCl-equivalent 
limit, you must submit a revised eligibility demonstration for review 
and approval. Upon approval of the revised eligibility demonstration, 
you must comply with Sec.  63.1206(b)(5)(i)(A)(2), (B), and (C).
    (2) Changes over which you do not have control. (i) You must review 
the documentation you use in your eligibility demonstration every five 
years on the anniversary of the comprehensive performance test and 
submit for review and approval with the comprehensive performance test 
plan either a certification that the information used in your 
eligibility demonstration has not changed in a manner that would 
decrease the allowable HCl-equivalent emission rate limit, or a revised 
eligibility demonstration for a revised HCl-equivalent emission rate 
limit.
    (ii) If you determine that you cannot demonstrate compliance with a 
lower allowable HCl-equivalent emission rate limit during the 
comprehensive performance test because you cannot complete changes to 
the design or operation of the source prior to the test, you may 
request that the permitting authority grant you additional time as 
necessary to make those changes, not to exceed three years.

   Table 1. to Sec.   63.1215.--Allowable Toxicity-Weighted Emission Rate Expressed in HCL Equivalents (lb/hr)
----------------------------------------------------------------------------------------------------------------
                                                       Distance to property boundary (m)
        Stack ht  (m)        -----------------------------------------------------------------------------------
                                   10            30            50            100           200           500
----------------------------------------------------------------------------------------------------------------
2...........................        0.0244        0.0322        0.0338        0.0627         0.173         0.766
5...........................        0.0475        0.0612        0.0881        0.168          0.309         0.881
10..........................        0.165         0.187         0.216         0.336          0.637         1.59
20..........................        0.661         1.01          1.01          1.2            1.87          4.31
35..........................        2.02          2.02          4.04          4.11           5.08         10.4
50..........................        4.11          4.11          4.11          9.74          10.8          18.0
----------------------------------------------------------------------------------------------------------------

[[Page 21375]]

    13. Section 63.1216 and an undesignated center heading are added to 
subpart EEE to read as follows:

Emissions Standards and Operating Limits for Solid Fuel-Fired Boilers, 
Liquid Fuel-Fired Boilers, and Hydrochloric Acid Production Furnaces

Sec.  63.1216  What are the standards for solid fuel-fired boilers that 
burn hazardous waste?

    (a) Emission limits for existing sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1) For dioxin and furan, either carbon monoxide or hydrocarbon 
emissions in excess of the limits provided by paragraph (a)(5) of this 
section;
    (2) Mercury in excess of 10 ug/dscm corrected to 7 percent oxygen;
    (3) Except for an area source as defined in Sec.  63.2, cadmium and 
lead in excess of 170 ug/dscm, combined emissions, corrected to 7 
percent oxygen;
    (4) Except for an area source as defined in Sec.  63.2, arsenic, 
beryllium, and chromium in excess of 210 ug/dscm, combined emissions, 
corrected to 7 percent oxygen;
    (5) For carbon monoxide and hydrocarbons, either:
    (i) Carbon monoxide in excess of 100 parts per million by volume, 
over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis and corrected to 7 
percent oxygen. If you elect to comply with this carbon monoxide 
standard rather than the hydrocarbon standard under paragraph 
(a)(5)(ii) of this section, you must also document that, during the 
destruction and removal efficiency (DRE) test runs or their equivalent 
as provided by Sec.  63.1206(b)(7), hydrocarbons do not exceed 10 parts 
per million by volume during those runs, over an hourly rolling average 
(monitored continuously with a continuous emissions monitoring system), 
dry basis, corrected to 7 percent oxygen, and reported as propane; or
    (ii) Hydrocarbons in excess of 10 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) Except for an area source as defined in Sec.  63.2, hydrogen 
chloride and chlorine gas in excess of 440 parts per million by volume, 
combined emissions, expressed as a chloride (Cl(-)) 
equivalent, dry basis and corrected to 7 percent oxygen; and
    (7) Except for an area source as defined in Sec.  63.2, particulate 
matter in excess of 68 mg/dscm corrected to 7 percent oxygen.
    (b) Emission limits for new sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1) For dioxin and furan, either carbon monoxide or hydrocarbon 
emissions in excess of the limits provided by paragraph (b)(5) of this 
section;
    (2) Mercury in excess of 10 [mu]g/dscm corrected to 7 percent oxygen;
    (3) Except for an area source as defined in Sec.  63.2, cadmium and 
lead in excess of 170 [mu]g/dscm, combined emissions, corrected to 7 
percent oxygen;
    (4) Except for an area source as defined in Sec.  63.2, arsenic, 
beryllium, and chromium in excess of 190 [mu]g/dscm, combined 
emissions, corrected to 7 percent oxygen;
    (5) For carbon monoxide and hydrocarbons, either:
    (i) Carbon monoxide in excess of 100 parts per million by volume, 
over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis and corrected to 7 
percent oxygen. If you elect to comply with this carbon monoxide 
standard rather than the hydrocarbon standard under paragraph 
(b)(5)(ii) of this section, you must also document that, during the 
destruction and removal efficiency (DRE) test runs or their equivalent 
as provided by Sec. Sec.  63.1206(b)(7), hydrocarbons do not exceed 10 
parts per million by volume during those runs, over an hourly rolling 
average (monitored continuously with a continuous emissions monitoring 
system), dry basis, corrected to 7 percent oxygen, and reported as 
propane; or
    (ii) Hydrocarbons in excess of 10 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) Except for an area source as defined in Sec.  63.2, hydrogen 
chloride and chlorine gas in excess of 73 parts per million by volume, 
combined emissions, expressed as a chloride (Cl(-)) 
equivalent, dry basis and corrected to 7 percent oxygen; and
    (7) Except for an area source as defined in Sec.  63.2, particulate 
matter in excess of 34 mg/dscm corrected to 7 percent oxygen.
    (c) Destruction and removal efficiency (DRE) standard--(1) 99.99% 
DRE. Except as provided in paragraph (c)(2) of this section, you must 
achieve a DRE of 99.99% for each principle organic hazardous 
constituent (POHC) designated under paragraph (c)(3) of this section. 
You must calculate DRE for each POHC from the following equation:

DRE = [1-(Wout / Win)]
x 100%
Where:
Win = mass feedrate of one POHC in a waste feedstream; and
Wout = mass emission rate of the same POHC present in exhaust emissions 
prior to release to the atmosphere.

    (2) 99.9999% DRE. If you burn the dioxin-listed hazardous wastes 
F020, F021, F022, F023, F026, or F027 (see Sec.  261.31 of this 
chapter), you must achieve a DRE of 99.9999% for each POHC that you 
designate under paragraph (c)(3) of this section. You must demonstrate 
this DRE performance on POHCs that are more difficult to incinerate 
than tetra-, penta-, and hexachlorodibenzo-p-dioxins and dibenzofurans. 
You must use the equation in paragraph (c)(1) of this section to 
calculate DRE for each POHC. In addition, you must notify the 
Administrator of your intent to incinerate hazardous wastes F020, F021, 
F022, F023, F026, or F027.
    (3) Principal organic hazardous constituents (POHCs). (i) You must 
treat the POHCs in the waste feed that you specify under paragraph 
(c)(3)(ii) of this section to the extent required by paragraphs (c)(1) 
and (c)(2) of this section.
    (ii) You must specify one or more POHCs from the list of hazardous 
air pollutants established by 42 U.S.C. 7412(b)(1), excluding 
caprolactam (CAS number 105602) as provided by Sec.  63.60, for each 
waste to be burned. You must base this specification on the degree of 
difficulty of incineration of the organic constituents in the waste and 
on their concentration or mass in the waste feed, considering the 
results of waste analyses or other data and information.
    (d) Significant figures. The emission limits provided by paragraphs 
(a) and (b) of this section are presented with two significant figures. 
Although you must perform intermediate calculations using at least 
three significant figures, you may round the resultant emission levels 
to two significant figures to document compliance.
    14. Section 63.1217 is added to subpart EEE to read as follows:

Sec.  63.1217  What are the standards for liquid fuel-fired boilers 
that burn hazardous waste?

    (a) Emission limits for existing sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:

[[Page 21376]]

    (1)(i) Dioxin and furan in excess of 0.40 ng TEQ/dscm corrected to 
7 percent oxygen for incinerators equipped with either a waste heat 
boiler or dry air pollution control system; or
    (ii) Either carbon monoxide or hydrocarbon emissions in excess of 
the limits provided by paragraph (a)(5) of this section for sources not 
equipped with either a waste heat boiler or dry air pollution control 
system;
    (iii) A source equipped a wet air pollution control system followed 
by a dry air pollution control system is not considered to be a dry air 
pollution control system, and a source equipped with a dry air 
pollution control system followed a wet air pollution control system is 
considered to be a dry air pollution control system for purposes of 
this emission limit;
    (2) Mercury in excess of 3.7 x 10-6 lbs mercury 
emissions attributable to the hazardous waste per million British 
thermal unit heat input from the hazardous waste;
    (3) Except for an area source as defined in Sec.  63.2, in excess 
of 1.1 x 10-5 lbs combined emissions of cadmium and lead 
attributable to the hazardous waste per million British thermal unit 
heat input from the hazardous waste;
    (4) Except for an area source as defined in Sec.  63.2, in excess 
of 1.1 x 10-4 lbs chromium emissions attributable to the 
hazardous waste per million British thermal unit heat input from the 
hazardous waste;
    (5) For carbon monoxide and hydrocarbons, either:
    (i) Carbon monoxide in excess of 100 parts per million by volume, 
over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis and corrected to 7 
percent oxygen. If you elect to comply with this carbon monoxide 
standard rather than the hydrocarbon standard under paragraph 
(a)(5)(ii) of this section, you must also document that, during the 
destruction and removal efficiency (DRE) test runs or their equivalent 
as provided by Sec.  63.1206(b)(7), hydrocarbons do not exceed 10 parts 
per million by volume during those runs, over an hourly rolling average 
(monitored continuously with a continuous emissions monitoring system), 
dry basis, corrected to 7 percent oxygen, and reported as propane; or
    (ii) Hydrocarbons in excess of 10 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) Except for an area source as defined in Sec.  63.2, in excess 
of 2.5 x0-2 lbs combined emissions of hydrogen chloride and 
chlorine gas attributable to the hazardous waste per million British 
thermal unit heat input from the hazardous waste; and
    (7) Except for an area source as defined in Sec.  63.2 or as 
provided by paragraph (e)(2) of this section, particulate matter in 
excess of 59 mg/dscm corrected to 7 percent oxygen.
    (b) Emission limits for new sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1)(i) Dioxin and furan in excess of 0.015 ng TEQ/dscm corrected to 
7 percent oxygen for incinerators equipped with either a waste heat 
boiler or dry air pollution control system; or
    (ii) Either carbon monoxide or hydrocarbon emissions in excess of 
the limits provided by paragraph (a)(5) of this section for sources not 
equipped with either a waste heat boiler or dry air pollution control 
system;
    (iii) A source equipped a wet air pollution control system followed 
by a dry air pollution control system is not considered to be a dry air 
pollution control system, and a source equipped with a dry air 
pollution control system followed a wet air pollution control system is 
considered to be a dry air pollution control system for purposes of 
this emission limit;
    (2) In excess of 3.8 x 10-7 lbs mercury emissions 
attributable to the hazardous waste per million British thermal unit 
heat input from the hazardous waste;
    (3) Except for an area source as defined in Sec.  63.2, in excess 
of 4.3 x 10-6 lbs combined emissions of cadmium and lead 
attributable to the hazardous waste per million British thermal unit 
heat input from the hazardous waste;
    (4) Except for an area source as defined in Sec.  63.2, in excess 
of 3.6 x 10-5 lbs chromium emissions attributable to the 
hazardous waste per million British thermal unit heat input from the 
hazardous waste;
    (5) For carbon monoxide and hydrocarbons, either:
    (i) Carbon monoxide in excess of 100 parts per million by volume, 
over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis and corrected to 7 
percent oxygen. If you elect to comply with this carbon monoxide 
standard rather than the hydrocarbon standard under paragraph 
(a)(5)(ii) of this section, you must also document that, during the 
destruction and removal efficiency (DRE) test runs or their equivalent 
as provided by Sec.  63.1206(b)(7), hydrocarbons do not exceed 10 parts 
per million by volume during those runs, over an hourly rolling average 
(monitored continuously with a continuous emissions monitoring system), 
dry basis, corrected to 7 percent oxygen, and reported as propane; or
    (ii) Hydrocarbons in excess of 10 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) Except for an area source as defined in Sec.  63.2, in excess 
of 7.2 x 10-4 lbs combined emissions of hydrogen chloride 
and chlorine gas attributable to the hazardous waste per million 
British thermal unit heat input from the hazardous waste; and
    (7) Except for an area source as defined in Sec.  63.2 or as 
provided in paragraph (e)(3) of this section, particulate matter in 
excess of 9.8 mg/dscm corrected to 7 percent oxygen.
    (c) Destruction and removal efficiency (DRE) standard--(1) 99.99% 
DRE. Except as provided in paragraph (c)(2) of this section, you must 
achieve a DRE of 99.99% for each principle organic hazardous 
constituent (POHC) designated under paragraph (c)(3) of this section. 
You must calculate DRE for each POHC from the following equation:

DRE = [1-(Wout / Win)]
x 100%
Where:
Win = mass feedrate of one POHC in a waste feedstream; and
Wout = mass emission rate of the same POHC present in exhaust emissions 
prior to release to the atmosphere.
    (2) 99.9999% DRE. If you burn the dioxin-listed hazardous wastes 
F020, F021, F022, F023, F026, or F027 (see Sec.  261.31 of this 
chapter), you must achieve a DRE of 99.9999% for each POHC that you 
designate under paragraph (c)(3) of this section. You must demonstrate 
this DRE performance on POHCs that are more difficult to incinerate 
than tetra-, penta-, and hexachlorodibenzo-p-dioxins and dibenzofurans. 
You must use the equation in paragraph (c)(1) of this section to 
calculate DRE for each POHC. In addition, you must notify the 
Administrator of your intent to incinerate hazardous wastes F020, F021, 
F022, F023, F026, or F027.
    (3) Principal organic hazardous constituents (POHCs). (i) You must 
treat the POHCs in the waste feed that you specify under paragraph 
(c)(3)(ii) of this section to the extent required by paragraphs (c)(1) 
and (c)(2) of this section.
    (ii) You must specify one or more POHCs from the list of hazardous air

[[Page 21377]]

pollutants established by 42 U.S.C. 7412(b)(1), excluding caprolactam 
(CAS number 105602) as provided by Sec.  63.60, for each waste to be 
burned. You must base this specification on the degree of difficulty of 
incineration of the organic constituents in the waste and on their 
concentration or mass in the waste feed, considering the results of 
waste analyses or other data and information.
    (d) Significant figures. The emission limits provided by paragraphs 
(a) and (b) of this section are presented with two significant figures. 
Although you must perform intermediate calculations using at least 
three significant figures, you may round the resultant emission levels 
to two significant figures to document compliance.
    (e) Alternative to the particulate matter standard for liquid fuel-
fired boilers. (1) General. In lieu of complying with the applicable 
particulate matter standards of paragraphs (a)(7) and (b)(7) of this 
section, you may elect to comply with the following alternative metal 
emission control requirements:
    (2) Alternative metal emission control requirements for existing 
sources. (i) You must not discharge or cause combustion gases to be 
emitted into the atmosphere that contain in excess of 1.1 x 
10-5 lbs combined emissions of cadmium, lead, and selenium 
attributable to the hazardous waste per million British thermal unit 
heat input from the hazardous waste, corrected to 7 percent oxygen; 
and,
    (ii) You must not discharge or cause combustion gases to be emitted 
into the atmosphere that contain in excess of 7.7 x 10-5 lbs 
combined emissions of antimony, arsenic, beryllium, chromium, cobalt, 
manganese, and nickel attributable to the hazardous waste per million 
British thermal unit heat input from the hazardous waste, corrected to 
7 percent oxygen.
    (3) Alternative metal emission control requirements for new 
sources. (i) You must not discharge or cause combustion gases to be 
emitted into the atmosphere that contain in excess of 4.3 x 
10-6 lbs combined emissions of cadmium, lead, and selenium 
attributable to the hazardous waste per million British thermal unit 
heat input from the hazardous waste, corrected to 7 percent oxygen; and,
    (ii) You must not discharge or cause combustion gases to be emitted 
into the atmosphere that contain in excess of 3.6 x 10-5 lbs 
combined emissions of antimony, arsenic, beryllium, chromium, cobalt, 
manganese, and nickel attributable to the hazardous waste per million 
British thermal unit heat input from the hazardous waste, corrected to 
7 percent oxygen.
    15. Section 63.1218 is added to subpart EEE to read as follows:

Sec.  63.1218  What are the standards for hydrochloric acid production 
furnaces that burn hazardous waste?

    (a) Emission limits for existing sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1) Dioxin and furan emissions in excess of 0.40 ng TEQ/dscm, 
corrected to 7 percent oxygen;
    (2) For mercury, hydrogen chloride and chlorine gas emissions in 
excess of the levels provided by paragraph (a)(6) of this section;
    (3) For lead and cadmium, hydrogen chloride and chlorine gas 
emissions in excess of the levels provided by paragraph (a)(6) of this 
section;
    (4) For arsenic, beryllium, and chromium, hydrogen chloride and 
chlorine gas emissions in excess of the levels provided by paragraph 
(a)(6) of this section;
    (5) For carbon monoxide and hydrocarbons, either:
    (i) Carbon monoxide in excess of 100 parts per million by volume, 
over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis and corrected to 7 
percent oxygen. If you elect to comply with this carbon monoxide 
standard rather than the hydrocarbon standard under paragraph 
(a)(5)(ii) of this section, you must also document that, during the 
destruction and removal efficiency (DRE) test runs or their equivalent 
as provided by Sec.  63.1206(b)(7), hydrocarbons do not exceed 10 parts 
per million by volume during those runs, over an hourly rolling average 
(monitored continuously with a continuous emissions monitoring system), 
dry basis, corrected to 7 percent oxygen, and reported as propane; or
    (ii) Hydrocarbons in excess of 10 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) For hydrogen chloride and chlorine gas, either:
    (i) Emission in excess of 14 parts per million by volume, combined 
emissions, expressed as a chloride (Cl(-) equivalent, dry 
basis and corrected to 7 percent oxygen; or
    (ii) Emissions greater than the levels that would be emitted if the 
source is achieving a system removal efficiency (SRE) of less than 
99.9927 percent for total chlorine and chloride fed to the combustor. 
You must calculate SRE from the following equation:

SRE = [1-(Cl out / Cl in)]
X 100%

Where:

Clin = mass feedrate of total chlorine or chloride in all 
feedstreams, reported as chloride; and
Clout = mass emission rate of hydrogen chloride and chlorine 
gas, reported as chloride, in exhaust emissions prior to release to the 
atmosphere.

    (7) For particulate matter, hydrogen chloride and chlorine gas 
emissions in excess of the levels provided by paragraph (a)(6) of this 
section.
    (b) Emission limits for new sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1) Dioxin and furan emissions in excess of 0.40 ng TEQ/dscm, 
corrected to 7 percent oxygen;
    (2) For mercury, hydrogen chloride and chlorine gas emissions in 
excess of the levels provided by paragraph (a)(6) of this section;
    (3) For lead and cadmium, hydrogen chloride and chlorine gas 
emissions in excess of the levels provided by paragraph (a)(6) of this 
section;
    (4) For arsenic, beryllium, and chromium, hydrogen chloride and 
chlorine gas emissions in excess of the levels provided by paragraph 
(a)(6) of this section;
    (5) For carbon monoxide and hydrocarbons, either:
    (i) Carbon monoxide in excess of 100 parts per million by volume, 
over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis and corrected to 7 
percent oxygen. If you elect to comply with this carbon monoxide 
standard rather than the hydrocarbon standard under paragraph 
(b)(5)(ii) of this section, you must also document that, during the 
destruction and removal efficiency (DRE) test runs or their equivalent 
as provided by Sec.  63.1206(b)(7), hydrocarbons do not exceed 10 parts 
per million by volume during those runs, over an hourly rolling average 
(monitored continuously with a continuous emissions monitoring system), 
dry basis, corrected to 7 percent oxygen, and reported as propane; or
    (ii) Hydrocarbons in excess of 10 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) For hydrochloric acid and chlorine gas, either:
    (i) Emission in excess of 1.2 parts per million by volume, combined 
emissions, expressed as a chloride

[[Page 21378]]

(Cl (-)) equivalent, dry basis and corrected to 7 percent 
oxygen; or
    (ii) Emissions greater than the levels that would be emitted if the 
source is achieving a system removal efficiency (SRE) of less than 
99.99937 percent for total chlorine and chloride fed to the combustor. 
You must calculate SRE from the following equation:

SRE = [1-(Cl out / Cl in)]
x 100%
Where:

Cl in = mass feedrate of total chlorine or chloride in all 
feedstreams, reported as chloride; and
Cl out = mass emission rate of hydrogen chloride and 
chlorine gas, reported as chloride, in exhaust emissions prior to 
release to the atmosphere.

    (7) For particulate matter, hydrogen chloride and chlorine gas 
emissions in excess of the levels provided by paragraph (a)(6) of this 
section.
    (c) Destruction and removal efficiency (DRE) standard--(1) 99.99% 
DRE. Except as provided in paragraph (c)(2) of this section, you must 
achieve a DRE of 99.99% for each principle organic hazardous 
constituent (POHC) designated under paragraph (c)(3) of this section. 
You must calculate DRE for each POHC from the following equation:

DRE = [1-(Wout / Win)]
x 100%

Where:

    Win = mass feedrate of one POHC in a waste feedstream; 
and
    Wout = mass emission rate of the same POHC present in 
exhaust emissions prior to release to the atmosphere.

    (2) 99.9999% DRE. If you burn the dioxin-listed hazardous wastes 
F020, F021, F022, F023, F026, or F027 (see Sec.  261.31 of this 
chapter), you must achieve a DRE of 99.9999% for each POHC that you 
designate under paragraph (c)(3) of this section. You must demonstrate 
this DRE performance on POHCs that are more difficult to incinerate 
than tetra-, penta-, and hexachlorodibenzo-p-dioxins and dibenzofurans. 
You must use the equation in paragraph (c)(1) of this section to 
calculate DRE for each POHC. In addition, you must notify the 
Administrator of your intent to incinerate hazardous wastes F020, F021, 
F022, F023, F026, or F027.
    (3) Principal organic hazardous constituents (POHCs). (i) You must 
treat the POHCs in the waste feed that you specify under paragraph 
(c)(3)(ii) of this section to the extent required by paragraphs (c)(1) 
and (c)(2) of this section.
    (ii) You must specify one or more POHCs from the list of hazardous 
air pollutants established by 42 U.S.C. 7412(b)(1), excluding 
caprolactam (CAS number 105602) as provided by Sec.  63.60, for each 
waste to be burned. You must base this specification on the degree of 
difficulty of incineration of the organic constituents in the waste and 
on their concentration or mass in the waste feed, considering the 
results of waste analyses or other data and information.
    (d) Significant figures. The emission limits provided by paragraphs 
(a) and (b) of this section are presented with two significant figures. 
Although you must perform intermediate calculations using at least 
three significant figures, you may round the resultant emission levels 
to two significant figures to document compliance.
    16. Section 63.1219 and a new undesignated center heading are added 
to subpart EEE to read as follows:

Replacement Emissions Standards and Operating Limits for Incinerators, 
Cement Kilns, and Lightweight Aggregate Kilns

Sec.  63.1219  What are the replacement standards for hazardous waste 
incinerators?

    (a) Emission limits for existing sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1)(i) Dioxin and furan in excess of 0.28 ng TEQ/dscm corrected to 
7 percent oxygen for incinerators equipped with either a waste heat 
boiler or dry air pollution control system; or
    (ii) Dioxin and furan in excess of 0.40 ng TEQ/dscm corrected to 7 
percent oxygen for sources not equipped with either a waste heat boiler 
or dry air pollution control system;
    (iii) A source equipped a wet air pollution control system followed 
by a dry air pollution control system is not considered to be a dry air 
pollution control system, and a source equipped with a dry air 
pollution control system followed a wet air pollution control system is 
considered to be a dry air pollution control system for purposes of 
this emission limit;
    (2) Mercury in excess of 130 [mu]g/dscm corrected to 7 percent oxygen;
    (3) Cadmium and lead in excess of 59 [mu]g/dscm, combined 
emissions, corrected to 7 percent oxygen;
    (4) Arsenic, beryllium, and chromium in excess of 84 [mu]g/dscm, 
combined emissions, corrected to 7 percent oxygen;
    (5) For carbon monoxide and hydrocarbons, either:
    (i) Carbon monoxide in excess of 100 parts per million by volume, 
over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis and corrected to 7 
percent oxygen. If you elect to comply with this carbon monoxide 
standard rather than the hydrocarbon standard under paragraph 
(a)(5)(ii) of this section, you must also document that, during the 
destruction and removal efficiency (DRE) test runs or their equivalent 
as provided by Sec.  63.1206(b)(7), hydrocarbons do not exceed 10 parts 
per million by volume during those runs, over an hourly rolling average 
(monitored continuously with a continuous emissions monitoring system), 
dry basis, corrected to 7 percent oxygen, and reported as propane; or
    (ii) Hydrocarbons in excess of 10 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) Hydrogen chloride and chlorine gas (total chlorine) in excess 
of 1.5 parts per million by volume, combined emissions, expressed as a 
chloride (Cl(-)) equivalent, dry basis and corrected to 7 
percent oxygen; and
    (7) Except as provided by paragraph (e)(2) of this section, 
particulate matter in excess of 34 mg/dscm corrected to 7 percent oxygen.
    (b) Emission limits for new sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1)(i) Dioxin and furans in excess of 0.11 ng TEQ/dscm corrected to 
7 percent oxygen for incinerators equipped with either a waste heat 
boiler or dry air pollution control system; or
    (ii) Dioxin and furans in excess of 0.20 ng TEQ/dscm corrected to 7 
percent oxygen for sources not equipped with either a waste heat boiler 
or dry air pollution control system;
    (iii) A source equipped a wet air pollution control system followed 
by a dry air pollution control system is not considered to be a dry air 
pollution control system, and a source equipped with a dry air 
pollution control system followed a wet air pollution control system is 
considered to be a dry air pollution control system for purposes of 
this standard;
    (2) Mercury in excess of 8 [mu]g/dscm corrected to 7 percent oxygen;
    (3) Cadmium and lead in excess of 6.5 [mu]g/dscm, combined 
emissions, corrected to 7 percent oxygen;
    (4) Arsenic, beryllium, and chromium in excess of 8.9 [mu]g/dscm, 
combined emissions, corrected to 7 percent oxygen;
    (5) For carbon monoxide and hydrocarbons, either:
    (i) Carbon monoxide in excess of 100 parts per million by volume, 
over an

[[Page 21379]]

hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis and corrected to 7 percent 
oxygen. If you elect to comply with this carbon monoxide standard 
rather than the hydrocarbon standard under paragraph (b)(5)(ii) of this 
section, you must also document that, during the destruction and 
removal efficiency (DRE) test runs or their equivalent as provided by 
Sec.  63.1206(b)(7), hydrocarbons do not exceed 10 parts per million by 
volume during those runs, over an hourly rolling average (monitored 
continuously with a continuous emissions monitoring system), dry basis, 
corrected to 7 percent oxygen, and reported as propane; or
    (ii) Hydrocarbons in excess of 10 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) Hydrogen chloride and chlorine gas in excess of 0.18 parts per 
million by volume, combined emissions, expressed as a chloride 
(Cl(-)) equivalent, dry basis and corrected to 7 percent 
oxygen; and
    (7) Except as provided by paragraph (e)(3) of this section, 
particulate matter in excess of 1.6 mg/dscm corrected to 7 percent 
oxygen.
    (c) Destruction and removal efficiency (DRE) standard--(1) 99.99% 
DRE. Except as provided in paragraph (c)(2) of this section, you must 
achieve a destruction and removal efficiency (DRE) of 99.99% for each 
principle organic hazardous constituent (POHC) designated under 
paragraph (c)(3) of this section. You must calculate DRE for each POHC 
from the following equation:

DRE = [1 - (Wout / Win )]
x 100%

Where:
Win = mass feedrate of one POHC in a waste feedstream; and
Wout = mass emission rate of the same POHC present in 
exhaust emissions prior to release to the atmosphere.

    (2) 99.9999% DRE. If you burn the dioxin-listed hazardous wastes 
F020, F021, F022, F023, F026, or F027 (see Sec.  261.31 of this 
chapter), you must achieve a DRE of 99.9999% for each POHC that you 
designate under paragraph (c)(3) of this section. You must demonstrate 
this DRE performance on POHCs that are more difficult to incinerate 
than tetra-, penta-, and hexachlorodibenzo-p-dioxins and dibenzofurans. 
You must use the equation in paragraph (c)(1) of this section to 
calculate DRE for each POHC. In addition, you must notify the 
Administrator of your intent to incinerate hazardous wastes F020, F021, 
F022, F023, F026, or F027.
    (3) Principal organic hazardous constituent (POHC). (i) You must 
treat each POHC in the waste feed that you specify under paragraph 
(c)(3)(ii) of this section to the extent required by paragraphs (c)(1) 
and (c)(2) of this section.
    (ii) You must specify one or more POHCs from the list of hazardous 
air pollutants established by 42 U.S.C. 7412(b)(1), excluding 
caprolactam (CAS number 105602) as provided by Sec.  63.60, for each 
waste to be burned. You must base this specification on the degree of 
difficulty of incineration of the organic constituents in the waste and 
on their concentration or mass in the waste feed, considering the 
results of waste analyses or other data and information.
    (d) Significant figures. The emission limits provided by paragraphs 
(a) and (b) of this section are presented with two significant figures. 
Although you must perform intermediate calculations using at least 
three significant figures, you may round the resultant emission levels 
to two significant figures to document compliance.
    (e) Alternative to the particulate matter standard for 
incinerators--(1) General. In lieu of complying with the applicable 
particulate matter standards of paragraphs (a)(7) and (b)(7) of this 
section, you may elect to comply with the following alternative metal 
emission control requirements:
    (2) Alternative metal emission control requirements for existing 
sources. (i) You must not discharge or cause combustion gases to be 
emitted into the atmosphere that contain cadmium, lead, and selenium in 
excess of 59 [mu]g/dscm, combined emissions, corrected to 7 percent 
oxygen; and,
    (ii) You must not discharge or cause combustion gases to be emitted 
into the atmosphere that contain antimony, arsenic, beryllium, 
chromium, cobalt, manganese, and nickel in excess of 84 [mu]g/dscm, 
combined emissions, corrected to 7 percent oxygen.
    (3) Alternative metal emission control requirements for new 
sources. (i) You must not discharge or cause combustion gases to be 
emitted into the atmosphere that contain cadmium, lead, and selenium in 
excess of 6.5/dscm, combined emissions, corrected to 7 percent oxygen; and,
    (ii) You must not discharge or cause combustion gases to be emitted 
into the atmosphere that contain antimony, arsenic, beryllium, 
chromium, cobalt, manganese, and nickel in excess of 8.9 [mu]g/dscm, 
combined emissions, corrected to 7 percent oxygen.
    17. Section 63.1220 is added to subpart EEE to read as follows:

Sec.  63.1220  What are the replacement standards for hazardous waste 
burning cement kilns?

    (a) Emission limits for existing sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1)(i) Dioxin and furan in excess of 0.20 ng TEQ/dscm corrected to 
7 percent oxygen; or
    (ii) Dioxin and furan in excess of 0.40 ng TEQ/dscm corrected to 7 
percent oxygen provided that the combustion gas temperature at the 
inlet to the initial dry particulate matter control device is 400[deg]F 
or lower based on the average of the test run average temperatures;
    (2) Mercury in excess of 64 [mu]g/dscm corrected to 7 percent oxygen;
    (3) In excess of 4.0 x 10-4 lbs combined emissions of 
cadmium and lead attributable to the hazardous waste per million 
British thermal unit heat input from the hazardous waste;
    (4) In excess of 1.4 x 10-5 lbs combined emissions of 
arsenic, beryllium, and chromium attributable to the hazardous waste 
per million British thermal unit heat input from the hazardous waste;
    (5) Carbon monoxide and hydrocarbons. (i) For kilns equipped with a 
by-pass duct or midkiln gas sampling system, either:
    (A) Carbon monoxide in the by-pass duct or mid-kiln gas sampling 
system in excess of 100 parts per million by volume, over an hourly 
rolling average (monitored continuously with a continuous emissions 
monitoring system), dry basis and corrected to 7 percent oxygen. If you 
elect to comply with this carbon monoxide standard rather than the 
hydrocarbon standard under paragraph (a)(5)(i)(B) of this section, you 
must also document that, during the destruction and removal efficiency 
(DRE) test runs or their equivalent as provided by Sec.  63.1206(b)(7), 
hydrocarbons in the by-pass duct or mid-kiln gas sampling system do not 
exceed 10 parts per million by volume during those runs, over an hourly 
rolling average (monitored continuously with a continuous emissions 
monitoring system), dry basis, corrected to 7 percent oxygen, and 
reported as propane; or
    (B) Hydrocarbons in the by-pass duct or midkiln gas sampling system 
in excess of 10 parts per million by volume, over an hourly rolling 
average (monitored continuously with a continuous emissions monitoring 
system), dry basis, corrected to 7

[[Page 21380]]

percent oxygen, and reported as propane;
    (ii) For kilns not equipped with a by-pass duct or midkiln gas 
sampling system, either:
    (A) Hydrocarbons in the main stack in excess of 20 parts per 
million by volume, over an hourly rolling average (monitored 
continuously with a continuous emissions monitoring system), dry basis, 
corrected to 7 percent oxygen, and reported as propane; or
    (B) Carbon monoxide in the main stack in excess of 100 parts per 
million by volume, over an hourly rolling average (monitored 
continuously with a continuous emissions monitoring system), dry basis 
and corrected to 7 percent oxygen. If you elect to comply with this 
carbon monoxide standard rather than the hydrocarbon standard under 
paragraph (a)(5)(ii)(A) of this section, you also must document that, 
during the destruction and removal efficiency (DRE) test runs or their 
equivalent as provided by Sec.  63.1206(b)(7), hydrocarbons in the main 
stack do not exceed 20 parts per million by volume during those runs, 
over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis, corrected to 7 
percent oxygen, and reported as propane.
    (6) Hydrogen chloride and chlorine gas in excess of 110 parts per 
million by volume, combined emissions, expressed as a chloride 
(Cl(-)) equivalent, dry basis, corrected to 7 percent 
oxygen; and
    (7) Particulate matter in excess of 65 mg/dscm corrected to 7 
percent oxygen.
    (b) Emission limits for new sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1)(i) Dioxin and furan in excess of 0.20 ng TEQ/dscm corrected to 
7 percent oxygen; or
    (ii) Dioxin and furan in excess of 0.40 ng TEQ/dscm corrected to 7 
percent oxygen provided that the combustion gas temperature at the 
inlet to the initial dry particulate matter control device is 400[deg]F 
or lower based on the average of the test run average temperatures;
    (2) Mercury in excess of 35 [mu]g/dscm corrected to 7 percent oxygen;
    (3) In excess of 6.2 x 10-5 lbs combined emissions of 
cadmium and lead attributable to the hazardous waste per million 
British thermal unit heat input from the hazardous waste;
    (4) In excess of 1.4 x 10-5 lbs combined emissions of 
arsenic, beryllium, and chromium attributable to the hazardous waste 
per million British thermal unit heat input from the hazardous waste;
    (5) Carbon monoxide and hydrocarbons. (i) For kilns equipped with a 
by-pass duct or midkiln gas sampling system, carbon monoxide and 
hydrocarbons emissions are limited in both the bypass duct or midkiln 
gas sampling system and the main stack as follows:
    (A) Emissions in the by-pass or midkiln gas sampling system are 
limited to either:
    (1) Carbon monoxide in excess of 100 parts per million by volume, 
over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis and corrected to 7 
percent oxygen. If you elect to comply with this carbon monoxide 
standard rather than the hydrocarbon standard under paragraph 
(b)(5)(i)(A)(2) of this section, you also must document that, during 
the destruction and removal efficiency (DRE) test runs or their 
equivalent as provided by Sec.  63.1206(b)(7), hydrocarbons do not 
exceed 10 parts per million by volume during those runs, over an hourly 
rolling average (monitored continuously with a continuous emissions 
monitoring system), dry basis, corrected to 7 percent oxygen, and 
reported as propane; or
    (2) Hydrocarbons in the by-pass duct or midkiln gas sampling system 
in excess of 10 parts per million by volume, over an hourly rolling 
average (monitored continuously with a continuous emissions monitoring 
system), dry basis, corrected to 7 percent oxygen, and reported as 
propane; and
    (B) Hydrocarbons in the main stack are limited, if construction of 
the kiln commenced after April 19, 1996 at a plant site where a cement 
kiln (whether burning hazardous waste or not) did not previously exist, 
to 50 parts per million by volume, over a 30-day block average 
(monitored continuously with a continuous monitoring system), dry 
basis, corrected to 7 percent oxygen, and reported as propane.
    (ii) For kilns not equipped with a by-pass duct or midkiln gas 
sampling system, hydrocarbons and carbon monoxide are limited in the 
main stack to either:
    (A) Hydrocarbons not exceeding 20 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane; or
    (B)(1) Carbon monoxide not exceeding 100 parts per million by 
volume, over an hourly rolling average (monitored continuously with a 
continuous emissions monitoring system), dry basis, corrected to 7 
percent oxygen; and
    (2) Hydrocarbons not exceeding 20 parts per million by volume, over 
an hourly rolling average (monitored continuously with a continuous 
monitoring system), dry basis, corrected to 7 percent oxygen, and 
reported as propane at any time during the destruction and removal 
efficiency (DRE) test runs or their equivalent as provided by Sec.  
63.1206(b)(7); and
    (3) If construction of the kiln commenced after April 19, 1996 at a 
plant site where a cement kiln (whether burning hazardous waste or not) 
did not previously exist, hydrocarbons are limited to 50 parts per 
million by volume, over a 30-day block average (monitored continuously 
with a continuous monitoring system), dry basis, corrected to 7 percent 
oxygen, and reported as propane.
    (6) Hydrogen chloride and chlorine gas in excess of 78 parts per 
million, combined emissions, expressed as a chloride (Cl(-)) 
equivalent, dry basis and corrected to 7 percent oxygen; and
    (7) Particulate matter in excess of 13 mg/dscm corrected to 7 
percent oxygen.
    (c) Destruction and removal efficiency (DRE) standard--(1) 99.99% 
DRE. Except as provided in paragraph (c)(2) of this section, you must 
achieve a destruction and removal efficiency (DRE) of 99.99% for each 
principle organic hazardous constituent (POHC) designated under 
paragraph (c)(3) of this section. You must calculate DRE for each POHC 
from the following equation:

DRE = [1 - (Wout / Win )]
x 100%

Where:

Win = mass feedrate of one POHC in a waste feedstream; and
Wout = mass emission rate of the same POHC present in 
exhaust emissions prior to release to the atmosphere.

    (2) 99.9999% DRE. If you burn the dioxin-listed hazardous wastes 
F020, F021, F022, F023, F026, or F027 (see Sec.  261.31 of this 
chapter), you must achieve a DRE of 99.9999% for each POHC that you 
designate under paragraph (c)(3) of this section. You must demonstrate 
this DRE performance on POHCs that are more difficult to incinerate 
than tetra-, penta-, and hexachlorodibenzo-p-dioxins and dibenzofurans. 
You must use the equation in paragraph (c)(1) of this section to 
calculate DRE for each POHC. In addition, you must notify the 
Administrator of your intent to incinerate hazardous wastes F020, F021, 
F022, F023, F026, or F027.

[[Page 21381]]

    (3) Principal organic hazardous constituent (POHC). (i) You must 
treat each POHC in the waste feed that you specify under paragraph 
(c)(3)(ii) of this section to the extent required by paragraphs (c)(1) 
and (c)(2) of this section.
    (ii) You must specify one or more POHCs from the list of hazardous 
air pollutants established by 42 U.S.C. 7412(b)(1), excluding 
caprolactam (CAS number 105602) as provided by Sec.  63.60, for each 
waste to be burned. You must base this specification on the degree of 
difficulty of incineration of the organic constituents in the waste and 
on their concentration or mass in the waste feed, considering the 
results of waste analyses or other data and information.
    (d) Cement kilns with in-line kiln raw mills. The provisions of 
Sec.  63.1204(d) apply.
    (1) General. (i) You must conduct performance testing when the raw 
mill is on-line and when the mill is off-line to demonstrate compliance 
with the emission standards, and you must establish separate operating 
parameter limits under Sec.  63.1209 for each mode of operation, except 
as provided by paragraph (d)(1)(iv) of this section.
    (ii) You must document in the operating record each time you change 
from one mode of operation to the alternate mode and begin complying 
with the operating parameter limits for that alternate mode of operation.
    (iii) You must establish rolling averages for the operating 
parameter limits anew (i.e., without considering previous recordings) 
when you begin complying with the operating limits for the alternate 
mode of operation.
    (iv) If your in-line kiln raw mill has dual stacks, you may assume 
that the dioxin/furan emission levels in the by-pass stack and the 
operating parameter limits determined during performance testing of the 
by-pass stack when the raw mill is off-line are the same as when the 
mill is on-line.
    (2) Emissions averaging. You may comply with the mercury, 
semivolatile metal, low volatile metal, and hydrochloric acid/chlorine 
gas emission standards on a time-weighted average basis under the 
following procedures:
    (i) Averaging methodology. You must calculate the time-weighted 
average emission concentration with the following equation:

Ctotal = {Cmill-off x (Tmill-off/
(Tmill-off + Tmill-on)){time}  + 
{Cmill-on x (Tmill-on/(Tmill-off + 
Tmill-on )){time} 

Where:

Ctotal = time-weighted average concentration of a regulated 
constituent considering both raw mill on time and off time;
Cmill-off = average performance test concentration of 
regulated constituent with the raw mill off-line;
Cmill-on = average performance test concentration of 
regulated constituent with the raw mill on-line;
Tmill-off = time when kiln gases are not routed through the 
raw mill; and
Tmill-on = time when kiln gases are routed through the raw 
mill.

    (ii) Compliance. (A) If you use this emission averaging provision, 
you must document in the operating record compliance with the emission 
standards on an annual basis by using the equation provided by 
paragraph (d)(2) of this section.
    (B) Compliance is based on one-year block averages beginning on the 
day you submit the initial notification of compliance.
    (iii) Notification. (A) If you elect to document compliance with 
one or more emission standards using this emission averaging provision, 
you must notify the Administrator in the initial comprehensive 
performance test plan submitted under Sec.  63.1207(e).
    (B) You must include historical raw mill operation data in the 
performance test plan to estimate future raw mill down-time and 
document in the performance test plan that estimated emissions and 
estimated raw mill down-time will not result in an exceedance of an 
emission standard on an annual basis.
    (C) You must document in the notification of compliance submitted 
under Sec.  63.1207(j) that an emission standard will not be exceeded 
based on the documented emissions from the performance test and 
predicted raw mill down-time.
    (e) Preheater or preheater/precalciner kilns with dual stacks--(1) 
General. You must conduct performance testing on each stack to 
demonstrate compliance with the emission standards, and you must 
establish operating parameter limits under Sec.  63.1209 for each 
stack, except as provided by paragraph (d)(1)(iv) of this section for 
dioxin/furan emissions testing and operating parameter limits for the 
by-pass stack of in-line raw mills.
    (2) Emissions averaging. You may comply with the mercury, 
semivolatile metal, low volatile metal, and hydrochloric acid/chlorine 
gas emission standards specified in this section on a gas flowrate-
weighted average basis under the following procedures:
    (i) Averaging methodology. You must calculate the gas flowrate-
weighted average emission concentration using the following equation:

Ctot = {Cmain x (Qmain/
(Qmain + Qbypass)){time}  + {Cbypass x 
(Qbypass/(Qmain + Qbypass)){time} 

Where:

Ctot = gas flowrate-weighted average concentration of the 
regulated constituent;
Cmain = average performance test concentration demonstrated 
in the main stack;
Cbypass = average performance test concentration 
demonstrated in the bypass stack;
Qmain = volumetric flowrate of main stack effluent gas; and
Qbypass = volumetric flowrate of bypass effluent gas.

    (ii) Compliance. (A) You must demonstrate compliance with the 
emission standard(s) using the emission concentrations determined from 
the performance tests and the equation provided by paragraph (e)(1) of 
this section; and
    (B) You must develop operating parameter limits for bypass stack 
and main stack flowrates that ensure the emission concentrations 
calculated with the equation in paragraph (e)(1) of this section do not 
exceed the emission standards on a 12-hour rolling average basis. You 
must include these flowrate limits in the Notification of Compliance.
    (iii) Notification. If you elect to document compliance under this 
emissions averaging provision, you must:
    (A) Notify the Administrator in the initial comprehensive 
performance test plan submitted under Sec.  63.1207(e). The performance 
test plan must include, at a minimum, information describing the 
flowrate limits established under paragraph (e)(2)(ii)(B) of this 
section; and
    (B) Document in the Notification of Compliance submitted under 
Sec.  63.1207(j) the demonstrated gas flowrate-weighted average 
emissions that you calculate with the equation provided by paragraph 
(e)(2) of this section.
    (f) Significant figures. The emission limits provided by paragraphs 
(a) and (b) of this section are presented with two significant figures. 
Although you must perform intermediate calculations using at least 
three significant figures, you may round the resultant emission levels 
to two significant figures to document compliance.
    (g) [Reserved].
    (h) When you comply with the particulate matter requirements of 
paragraphs (a)(7) or (b)(7) of this section, you are exempt from the 
New Source Performance Standard for particulate matter and opacity 
under Sec.  60.60 of this chapter.

[[Page 21382]]

    18. Section 63.1221 is added to subpart EEE to read as follows:

Sec.  63.1221  What are the replacement standards for hazardous waste 
burning lightweight aggregate kilns?

    (a) Emission limits for existing sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1) Dioxins and furans in excess of 0.40 ng TEQ/dscm corrected to 7 
percent oxygen;
    (2) Mercury in excess of 67 [mu]g/dscm corrected to 7 percent oxygen;
    (3)(i) In excess of 3.1 x 10-\4\ lbs combined emissions 
of cadmium and lead attributable to the hazardous waste per million 
British thermal unit heat input from the hazardous waste; and
    (ii) Lead and cadmium in excess of 250 [mu]g/dscm, combined 
emissions, corrected to 7 percent oxygen;
    (4)(ii) In excess of 9.5 x 10-\5\ lbs combined emissions 
of arsenic, beryllium, and chromium attributable to the hazardous waste 
per million British thermal unit heat input from the hazardous waste; and
    (ii) Arsenic, beryllium, and chromium in excess of 110 [mu]g/dscm, 
combined emissions, corrected to 7 percent oxygen;
    (5) Carbon monoxide and hydrocarbons. (i) Carbon monoxide in excess 
of 100 parts per million by volume, over an hourly rolling average 
(monitored continuously with a continuous emissions monitoring system), 
dry basis and corrected to 7 percent oxygen. If you elect to comply 
with this carbon monoxide standard rather than the hydrocarbon standard 
under paragraph (a)(5)(ii) of this section, you also must document 
that, during the destruction and removal efficiency (DRE) test runs or 
their equivalent as provided by Sec.  63.1206(b)(7), hydrocarbons do 
not exceed 20 parts per million by volume during those runs, over an 
hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane; or
    (ii) Hydrocarbons in excess of 20 parts per million by volume, over 
an hourly rolling average, dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) Hydrogen chloride and chlorine gas in excess of 600 parts per 
million by volume, combined emissions, expressed as a chloride 
(Cl(-)) equivalent, dry basis and corrected to 7 percent 
oxygen; and
    (7) Particulate matter in excess of 57 mg/dscm corrected to 7 
percent oxygen.
    (b) Emission limits for new sources. You must not discharge or 
cause combustion gases to be emitted into the atmosphere that contain:
    (1) Dioxins and furans in excess of 0.40 ng TEQ/dscm corrected to 7 
percent oxygen;
    (2) Mercury in excess of 67 [mu]g/dscm corrected to 7 percent oxygen;
    (3)(i) In excess of 2.4 x 10-\5\ lbs combined emissions 
of cadmium and lead attributable to the hazardous waste per million 
British thermal unit heat input from the hazardous waste; and
    (ii) Lead and cadmium in excess of 43 [mu]g/dscm, combined 
emissions, corrected to 7 percent oxygen;
    (4)(i) In excess of 3.2 x 10-\5\ lbs combined emissions 
of arsenic, beryllium, and chromium attributable to the hazardous waste 
per million British thermal unit heat input from the hazardous waste; and
    (ii) Arsenic, beryllium, and chromium in excess of 110 [mu]g/dscm, 
combined emissions, corrected to 7 percent oxygen;
    (5) Carbon monoxide and hydrocarbons. (i) Carbon monoxide in excess 
of 100 parts per million by volume, over an hourly rolling average 
(monitored continuously with a continuous emissions monitoring system), 
dry basis and corrected to 7 percent oxygen. If you elect to comply 
with this carbon monoxide standard rather than the hydrocarbon standard 
under paragraph (b)(5)(ii) of this section, you also must document 
that, during the destruction and removal efficiency (DRE) test runs or 
their equivalent as provided by Sec.  63.1206(b)(7), hydrocarbons do 
not exceed 20 parts per million by volume during those runs, over an 
hourly rolling average (monitored continuously with a continuous 
emissions monitoring system), dry basis, corrected to 7 percent oxygen, 
and reported as propane; or
    (ii) Hydrocarbons in excess of 20 parts per million by volume, over 
an hourly rolling average, dry basis, corrected to 7 percent oxygen, 
and reported as propane;
    (6) Hydrogen chloride and chlorine gas in excess of 600 parts per 
million by volume, combined emissions, expressed as a chloride 
(Cl-) equivalent, dry basis and corrected to 7 percent 
oxygen; and
    (7) Particulate matter in excess of 23 mg/dscm corrected to 7 
percent oxygen.
    (c) Destruction and removal efficiency (DRE) standard--(1) 99.99% 
DRE. Except as provided in paragraph (c)(2) of this section, you must 
achieve a destruction and removal efficiency (DRE) of 99.99% for each 
principal organic hazardous constituent (POHC) designated under 
paragraph (c)(3) of this section. You must calculate DRE for each POHC 
from the following equation:

DRE = [1- (Wout / Win)]
x 100%

Where:

Win = mass feedrate of one POHC in a waste feedstream; and
Wout = mass emission rate of the same POHC present in 
exhaust emissions prior to release to the atmosphere.

    (2) 99.9999% DRE. If you burn the dioxin-listed hazardous wastes 
F020, F021, F022, F023, F026, or F027 (see Sec.  261.31 of this 
chapter), you must achieve a destruction and removal efficiency (DRE) 
of 99.9999% for each POHC that you designate under paragraph (c)(3) of 
this section. You must demonstrate this DRE performance on POHCs that 
are more difficult to incinerate than tetra-, penta-, and 
hexachlorodibenzo-dioxins and dibenzofurans. You must use the equation 
in paragraph (c)(1) of this section to calculate DRE for each POHC. In 
addition, you must notify the Administrator of your intent to burn 
hazardous wastes F020, F021, F022, F023, F026, or F027.
    (3) Principal organic hazardous constituents (POHCs). (i) You must 
treat each POHC in the waste feed that you specify under paragraph 
(c)(3)(ii) of this section to the extent required by paragraphs (c)(1) 
and (c)(2) of this section.
    (ii) You must specify one or more POHCs from the list of hazardous 
air pollutants established by 42 U.S.C. 7412(b)(1), excluding 
caprolactam (CAS number 105602) as provided by Sec.  63.60, for each 
waste to be burned. You must base this specification on the degree of 
difficulty of incineration of the organic constituents in the waste and 
on their concentration or mass in the waste feed, considering the 
results of waste analyses or other data and information.
    (d) Significant figures. The emission limits provided by paragraphs 
(a) and (b) of this section are presented with two significant figures. 
Although you must perform intermediate calculations using at least 
three significant figures, you may round the resultant emission levels 
to two significant figures to document compliance.

PART 264--STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE 
TREATMENT, STORAGE, AND DISPOSAL FACILITIES

    1. The authority citation for part 264 continues to read as follows:

    Authority: 42 U.S.C. 6905, 6912(a), 6924, 6925, 6927, 6928(h), and 6974.

[[Page 21383]]

    2. Section 264.340 is amended by revising the first sentence of 
paragraph (b)(1) and adding paragraph (b)(5) to read as follows:

Sec.  264.340  Applicability.

* * * * *
    (b) * * * (1) Except as provided by paragraphs (b)(2) through 
(b)(5) of this section, the standards of this part no longer apply when 
an owner or operator demonstrates compliance with the maximum 
achievable control technology (MACT) requirements of part 63, subpart 
EEE, of this chapter by conducting a comprehensive performance test and 
submitting to the Administrator a Notification of Compliance under 
Sec. Sec.  63.1207(j) and 63.1210(d) of this chapter documenting 
compliance with the requirements of part 63, subpart EEE, of this 
chapter. * * *
* * * * *
    (5) The particulate matter standard of Sec.  264.343(c) remains in 
effect for incinerators that elect to comply with the alternative to 
the particulate matter standard of Sec.  63.1219(e) of this chapter.
* * * * *

PART 265--INTERIM STATUS STANDARDS FOR OWNERS AND OPERATORS OF 
HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES

    1. The authority citation for part 265 continues to read as follows:

    Authority: 42 U.S.C. 6905, 6906, 6912, 6922, 6923, 6924, 6925, 
6935, 6936, and 6937.

    2. Section 265.340 is amended by revising paragraph (b)(1) to read 
as follows:

Sec.  265.340  Applicability.

* * * * *
    (b) * * * (1) Except as provided by paragraphs (b)(2) and (b)(3) of 
this section, the standards of this part no longer apply when an owner 
or operator demonstrates compliance with the maximum achievable control 
technology (MACT) requirements of part 63, subpart EEE, of this chapter 
by conducting a comprehensive performance test and submitting to the 
Administrator a Notification of Compliance under Sec. Sec.  63.1207(j) 
and 63.1210(d) of this chapter documenting compliance with the 
requirements of part 63, subpart EEE, of this chapter.
* * * * *

PART 266--STANDARDS FOR THE MANAGEMENT OF SPECIFIC HAZARDOUS WASTES 
AND SPECIFIC TYPES OF HAZARDOUS WASTE MANAGEMENT FACILITIES

    1. The authority citation for part 266 continues to read as follows:

    Authority: 42 U.S.C. 1006, 2002(a), 3001-3009, 3014, 6905, 6906, 
6912, 6921, 6922, 6924-6927, 6934, and 6937.

    2. Section 266.100 is amended by revising the first sentence of 
paragraph (b)(1) and adding paragraph (b)(3) to read as follows:

Sec.  266.100  Applicability.

* * * * *
    (b) * * * (1) Except as provided by paragraphs (b)(2) and (b)(3) of 
this section, the standards of this part no longer apply when an owner 
or operator demonstrates compliance with the maximum achievable control 
technology (MACT) requirements of part 63, subpart EEE, of this chapter 
by conducting a comprehensive performance test and submitting to the 
Administrator a Notification of Compliance under Sec. Sec.  63.1207(j) 
and 63.1210(d) of this chapter documenting compliance with the 
requirements of part 63, subpart EEE, of this chapter. * * *
* * * * *
    (3) If you own or operate a boiler or hydrochloric acid furnace 
that is an area source under Sec.  63.2 of this chapter and you elect 
not to comply with the emission standards under Sec. Sec.  63.1216, 
63.1217, and 63.1218 of this chapter for particulate matter, 
semivolatile and low volatile metals, and total chlorine, you also 
remain subject to:
    (i) Section 266.105--Standards to control particulate matter;
    (ii) Section 266.106--Standards to control metals emissions, except 
for mercury; and
    (iii) Section 266.107--Standards to control hydrogen chloride and 
chlorine gas.
* * * * *

PART 270--EPA ADMINISTERED PERMIT PROGRAMS: THE HAZARDOUS WASTE 
PERMIT PROGRAM

    1. The authority citation for part 270 continues to read as follows:

    Authority: 42 U.S.C. 6905, 6912, 6924, 6925, 6927, 6939, and 6974.

    2. Section 270.10 is amended by adding paragraph (l) to read as follows:

Sec.  270.10  General application requirements.

* * * * *
    (l) If the Director concludes that there is reason to believe that 
compliance with the standards in 40 CFR part 63, subpart EEE alone may 
not be protective of human health or the environment, the Director 
shall require additional information or assessment(s) that the Director 
determines are necessary to ensure protection of human health and the 
environment. The Director also may require a permittee or an applicant 
to provide information necessary to determine whether such an 
assessment(s) should be required.
    3. Section 270.19 is amended by revising paragraph (e) to read as 
follows:

Sec.  270.19  Specific part B information requirements for 
incinerators.

* * * * *
    (e) When an owner or operator demonstrates compliance with the air 
emission standards and limitations in part 63, subpart EEE, of this 
chapter (i.e., by conducting a comprehensive performance test and 
submitting a Notification of Compliance under Sec. Sec.  63.1207(j) and 
63.1210(d) of this chapter documenting compliance with all applicable 
requirements of part 63, subpart EEE, of this chapter), the 
requirements of this section do not apply, except those provisions the 
Director determines are necessary to ensure compliance with Sec. Sec.  
264.345(a) and 264.345(c) of this chapter if you elect to comply with 
Sec.  270.235(a)(1)(i) to minimize emissions of toxic compounds from 
startup, shutdown, and malfunction events. Nevertheless, the Director 
may apply the provisions of this section, on a case-by-case basis, for 
purposes of information collection in accordance with Sec. Sec.  
270.10(k), 270.10(l), 270.32(b)(2), and 270.32(b)(3) of this chapter.
    3. Section 270.22 is amended by revising the introductory text to 
read as follows:

Sec.  270.22  Specific part B information requirements for boilers and 
industrial furnaces burning hazardous waste.

    When an owner or operator of a cement kiln, lightweight aggregate 
kiln, solid fuel-fired boiler, liquid fuel-fired boiler, or 
hydrochloric acid production furnace demonstrates compliance with the 
air emission standards and limitations in part 63, subpart EEE, of this 
chapter (i.e., by conducting a comprehensive performance test and 
submitting a Notification of Compliance under Sec. Sec.  63.1207(j) and 
63.1210(d) of this chapter documenting compliance with all applicable 
requirements of part 63, subpart EEE, of this chapter), the 
requirements of this section do not apply. The requirements of this section

[[Page 21384]]

do apply, however, if the Director determines certain provisions are 
necessary to ensure compliance with Sec. Sec.  266.102(e)(1) and 
266.102(e)(2)(iii) of this chapter if you elect to comply with Sec.  
270.235(a)(1)(i) to minimize emissions of toxic compounds from startup, 
shutdown, and malfunction events; or if you are an area source and 
elect to comply with the Sec. Sec.  266.105, 266.106, and 266.107 
standards and associated requirements for particulate matter, hydrogen 
chloride and chlorine gas, and non-mercury metals; or the Director 
determines certain provisions apply, on a case-by-case basis, for 
purposes of information collection in accordance with Sec. Sec.  
270.10(k), 270.10(l), 270.32(b)(2), and 270.32(b)(3).
* * * * *
    4. Section 270.32 is amended by adding paragraph (b)(3) to read as 
follows:

Sec.  270.32  Establishing permit conditions.

* * * * *
    (b) * * *
    (3) If, as the result of an assessment(s) or other information, the 
Administrator or Director determines that conditions are necessary in 
addition to those required under 40 CFR parts 63, subpart EEE, 264 or 
266 to ensure protection of human health and the environment, he shall 
include those terms and conditions in a RCRA permit for a hazardous 
waste combustion unit.
* * * * *
    5. Section 270.42 is amended by:
    a. Revising paragraph (j)(1).
    b. Redesignating paragraph (j)(2) as (j)(3).
    c. Adding new paragraph (j)(2).
    d. Adding new paragraph (k); and
    e. Adding a new entry 10 in numerical order in the table under 
section L of Appendix I.
    The revisions and additions reads as follows:

Sec.  270.42  Permit modification at the request of the permittee.

* * * * *
    (j) * * *
    (1) Facility owners or operators must have complied with the 
Notification of Intent to Comply (NIC) requirements of 40 CFR 63.1210 
that were in effect prior to October 11, 2000, (See 40 CFR part 63 
Sec. Sec.  63.1200-63.1499 revised as of July 1, 2000) in order to 
request a permit modification under this section for the purpose of 
technology changes needed to meet the 40 CFR 63.1203, 63.1204, and 
63.1205 standards.
    (2) Facility owners or operators must comply with the Notification 
of Intent to Comply (NIC) requirements of 40 CFR 63.1210(b) and 63.1212 
before a permit modification can be requested under this section for 
the purpose of technology changes needed to meet the 40 CFR 63.1215, 
63.1216, 63.1217, 63.1218, 63.1219, 63.1220, and 63.1221 standards 
promulgated on [date of publication of the final rule in the Federal 
Register].
* * * * *
    (k) Waiver of RCRA permitting requirements in support of transition 
to the part 63 MACT standards. (1) You may request to have specific 
RCRA operating and emissions limits waived by submitting a Class 1 
permit modification request under Appendix I of this section, section 
L(10). You must:
    (i) Identify the specific RCRA permit operating and emissions 
limits which you are requesting to waive;
    (ii) Provide an explanation of why the changes are necessary in 
order to minimize or eliminate conflicts between the RCRA permit and 
MACT compliance; and
    (iii) Discuss how the revised provisions will be sufficiently 
protective.
    (2) To request this modification in conjunction with MACT 
performance testing where permit limits may only be waived during 
actual test events and pretesting, as defined under 40 CFR 
63.1207(h)(2)(i) and (ii), for an aggregate time not to exceed 720 
hours of operation (renewable at the discretion of the Administrator) 
you must:
    (i) Demonstrate that your site-specific emissions test plan and 
continuous monitoring system performance evaluation test plan have been 
submitted and approved by the Administrator as required in 40 CFR 
63.1207(e), and
    (ii) Submit your modification request upon approval of your test plan.
    (3) The Director shall approve or deny the request within 30 days 
of receipt of the request. The Director may, at his or her discretion, 
extend this 30 day deadline one time for up to 30 days by notifying the 
facility owner or operator.
* * * * *

   Appendix I to Sec.   270.42--Classification of Permit Modification
------------------------------------------------------------------------
                          Modifications                            Class
------------------------------------------------------------------------

                                * * * * *
10. Changes to RCRA permit provisions needed to support            \1\ 1
 transition to 40 CFR part 63 (Subpart EEE--National Emission
 Standards for Hazardous Air Pollutants From Hazardous Waste
 Combustors), provided the procedures of Sec.   270.42(k) are
 followed.......................................................

                               * * * * *
------------------------------------------------------------------------
\1\ Class 1 modifications requiring prior Agency approval.

    6. Section 270.62 is amended by revising the introductory text to 
read as follows:

Sec.  270.62  Hazardous waste incinerator permits.

    When an owner or operator demonstrates compliance with the air 
emission standards and limitations in part 63, subpart EEE, of this 
chapter (i.e., by conducting a comprehensive performance test and 
submitting a Notification of Compliance under Sec. Sec.  63.1207(j) and 
63.1210(d) of this chapter documenting compliance with all applicable 
requirements of part 63, subpart EEE, of this chapter), the 
requirements of this section do not apply, except those provisions the 
Director determines are necessary to ensure compliance with Sec. Sec.  
264.345(a) and 264.345(c) of this chapter if you elect to comply with 
Sec.  270.235(a)(1)(i) to minimize emissions of toxic compounds from 
startup, shutdown, and malfunction events. Nevertheless, the Director 
may apply the provisions of this section, on a case-by-case basis, for 
purposes of information collection in accordance with Sec. Sec.  
270.10(k), 270.10(l), 270.32(b)(2), and 270.32(b)(3) of this chapter.
* * * * *
    7. Section 270.66 is amended by revising the introductory text to 
read as follows:

Sec.  270.66  Permits for boilers and industrial furnaces burning 
hazardous waste.

    When an owner or operator of a cement kiln, lightweight aggregate 
kiln, solid fuel-fired boiler, liquid fuel-fired boiler, or 
hydrochloric acid production furnace demonstrates compliance with the 
air emission standards and limitations in part 63, subpart EEE, of this 
chapter (i.e., by conducting a comprehensive performance test and 
submitting a Notification of Compliance under Sec. Sec.  63.1207(j) and 
63.1210(d) of this chapter documenting compliance with all applicable 
requirements of part 63, subpart EEE, of this chapter), the 
requirements of this section do not apply. The requirements of this 
section do apply, however, if the Director determines certain 
provisions are necessary to ensure compliance with Sec. Sec.  
266.102(e)(1) and 266.102(e)(2)(iii) of

[[Page 21385]]

this chapter if you elect to comply with Sec.  270.235(a)(1)(i) to 
minimize emissions of toxic compounds from startup, shutdown, and 
malfunction events; or if you are an area source and elect to comply 
with the Sec. Sec.  266.105, 266.106, and 266.107 standards and 
associated requirements for particulate matter, hydrogen chloride and 
chlorine gas, and non-mercury metals; or the Director determines 
certain provisions apply, on a case-by-case basis, for purposes of 
information collection in accordance with Sec. Sec.  270.10(k), 
270.10(l), 270.32(b)(2), and 270.32(b)(3).
* * * * *
    8. Section 270.235 is amended by:
    a. Revising paragraphs (a)(1) introductory text and (a)(2) 
introductory text.
    b. Revising paragraphs (b)(1) introductory text and (b)(2).
    The revisions read as follows:

Sec.  270.235  Options for incinerators, cement kilns, lightweight 
aggregate kilns, solid fuel-fired boilers, liquid fuel-fired boilers 
and hydrochloric acid production furnaces to minimize emissions from 
startup, shutdown, and malfunction events.

    (a) * * * (1) Revisions to permit conditions after documenting 
compliance with MACT. The owner or operator of a RCRA-permitted 
incinerator, cement kiln, lightweight aggregate kiln, solid fuel-fired 
boiler, liquid fuel-fired boiler, or hydrochloric acid production 
furnace may request that the Director address permit conditions that 
minimize emissions from startup, shutdown, and malfunction events under 
any of the following options when requesting removal of permit 
conditions that are no longer applicable according to Sec. Sec.  
264.340(b) and 266.100(b) of this chapter:
* * * * *
    (2) Addressing permit conditions upon permit reissuance. The owner 
or operator of an incinerator, cement kiln, lightweight aggregate kiln, 
solid fuel-fired boiler, liquid fuel-fired boiler, or hydrochloric acid 
production furnace that has conducted a comprehensive performance test 
and submitted to the Administrator a Notification of Compliance 
documenting compliance with the standards of part 63, subpart EEE, of 
this chapter may request in the application to reissue the permit for 
the combustion unit that the Director control emissions from startup, 
shutdown, and malfunction events under any of the following options:
* * * * *
    (b) * * * (1) Interim status operations. In compliance with 
Sec. Sec.  265.340 and 266.100(b), the owner or operator of an 
incinerator, cement kiln, lightweight aggregate kiln, solid fuel-fired 
boiler, liquid fuel-fired boiler, or hydrochloric acid production 
furnace that is operating under the interim status standards of part 
265 or 266 of this chapter may control emissions of toxic compounds 
during startup, shutdown, and malfunction events under either of the 
following options after conducting a comprehensive performance test and 
submitting to the Administrator a Notification of Compliance 
documenting compliance with the standards of part 63, subpart EEE, of 
this chapter.
* * * * *
    (2) Operations under a subsequent RCRA permit. When an owner or 
operator of an incinerator, cement kiln, lightweight aggregate kiln, 
solid fuel-fired boiler, liquid fuel-fired boiler, or hydrochloric acid 
production furnace that is operating under the interim status standards 
of parts 265 or 266 of this chapter submits a RCRA permit application, 
the owner or operator may request that the Director control emissions 
from startup, shutdown, and malfunction events under any of the options 
provided by paragraphs (a)(2)(i), (a)(2)(ii), or (a)(2)(iii) of this 
section.
* * * * *

PART 271--REQUIREMENTS FOR AUTHORIZATION OF STATE HAZARDOUS WASTE 
PROGRAMS

    1. The authority citation for part 271 continues to read as follows:

    Authority: 42 U.S.C. 6905, 6912(a), and 6926.

    2. Section 271.1(j) is amended by adding the following entry to 
Table 1 in chronological order by date of publication in the Federal 
Register, to read as follows:

Sec.  271.1  Purpose and scope.

* * * * *
    (j) * * *

               Table 1.--Regulations Implementing the Hazardous and Solid Waste Amendments of 1984
----------------------------------------------------------------------------------------------------------------
                                                                   Federal Register
          Promulgation date             Title of regulation            reference              Effective date
----------------------------------------------------------------------------------------------------------------

                                                  * * * * * * *
Insert date of publication of final   Standards for Hazardous  [Insert FR page numbers   [Insert date of
 rule in the Federal Register (FR)].   Air Pollutants for       of final rule].           publication of final
                                       Hazardous Waste                                    rule].
                                       Combustors.
----------------------------------------------------------------------------------------------------------------

[FR Doc. 04-7858 Filed 4-19-04; 8:45 am]
BILLING CODE 6560-50-P 

 
 


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