[Code of Federal Regulations]
[Title 40, Volume 9]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR63.484]

[Page 585-587]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 63_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS
 
   Subpart U_National Emission Standards for Hazardous Air Pollutant 
                 Emissions: Group I Polymers and Resins
 
Sec.  63.484  Storage vessel provisions.

    (a) This section applies to each storage vessel that is assigned to 
an affected source, as determined by Sec.  63.480(g). Except for those 
storage vessels exempted by paragraph (b) of this section, the owner or 
operator of affected sources shall comply with the requirements of 
Sec. Sec.  63.119 through 63.123 and 63.148, with the differences noted 
in paragraphs (c) through (s) of this section, for the purposes of this 
subpart.
    (b) Storage vessels described in paragraphs (b)(1) through (b)(7) of 
this section are exempt from the storage vessel requirements of this 
section.
    (1) Storage vessels containing styrene-butadiene latex;
    (2) Storage vessels containing latex products other than styrene-
butadiene latex, located downstream of the stripping operations;
    (3) Storage vessels containing high conversion latex products;
    (4) Storage vessels located downstream of the stripping operations 
at affected sources subject to the back-end residual organic HAP 
limitation located in Sec.  63.494, that are complying through the use 
of stripping technology, as specified in Sec.  63.495;
    (5) Storage vessels containing styrene;

[[Page 586]]

    (6) Storage vessels containing acrylamide; and
    (7) Storage vessels containing epichlorohydrin.
    (c) When the term ``storage vessel'' is used in Sec. Sec.  63.119 
through 63.123, the definition of this term in Sec.  63.482 shall apply 
for the purposes of this subpart.
    (d) When the term ``Group 1 storage vessel'' is used in Sec. Sec.  
63.119 through 63.123, the definition of this term in Sec.  63.482 shall 
apply for the purposes of this subpart.
    (e) When the term ``Group 2 storage vessel'' is used in Sec. Sec.  
63.119 through 63.123, the definition of this term in Sec.  63.482 shall 
apply for the purposes of this subpart.
    (f) When the emissions averaging provisions of Sec.  63.150 are 
referred to in Sec.  63.119 and Sec.  63.123, the emissions averaging 
provisions contained in Sec.  63.503 shall apply for the purposes of 
this subpart.
    (g) When December 31, 1992 is referred to in Sec.  63.119, June 12, 
1995 shall apply instead, for the purposes of this subpart.
    (h) When April 22, 1994 is referred to in Sec.  63.119, June 19, 
2000 shall apply instead, for the purposes of this subpart.
    (i) The owner or operator of an affected source shall comply with 
this paragraph instead of Sec.  63.120(d)(1)(ii) for the purposes of 
this subpart. If the control device used to comply with Sec.  63.119(e) 
is also used to comply with any of the requirements found in Sec. Sec.  
63.485 through 63.501, the performance test required in or accepted by 
the applicable requirements in Sec. Sec.  63.485 through 63.501 is 
acceptable for demonstrating compliance with Sec.  63.119(e), for the 
purposes of this subpart. The owner or operator will not be required to 
prepare a design evaluation for the control device as described in Sec.  
63.120(d)(1)(i), if the performance test meets the criteria specified in 
paragraphs (i)(1) and (i)(2) of this section.
    (1) The performance test demonstrates that the control device 
achieves greater than or equal to the required control efficiency 
specified in Sec.  63.119(e)(1) or Sec.  63.119(e)(2), as applicable; 
and
    (2) The performance test is submitted as part of the Notification of 
Compliance Status required by Sec.  63.506(e)(5).
    (j) When the term ``range'' is used in Sec. Sec.  63.120(d)(3)(i), 
63.120(d)(5), and 63.122(g)(2), the term ``level'' shall apply instead, 
for the purposes of this subpart.
    (k) For purposes of this subpart, the monitoring plan required by 
Sec.  63.120(d)(2) shall specify for which control devices the owner or 
operator has selected to follow the procedures for continuous monitoring 
specified in Sec.  63.505. For those control devices for which the owner 
or operator has selected to not follow the procedures for continuous 
monitoring specified in Sec.  63.505, the monitoring plan shall include 
a description of the parameter or parameters to be monitored to ensure 
that the control device is being properly operated and maintained, an 
explanation of the criteria used for selection of that parameter (or 
parameters), and the frequency with which monitoring will be performed 
(e.g., when the liquid level in the storage vessel is being raised), as 
specified in Sec.  63.120(d)(2)(i).
    (l) For purposes of this subpart, the monitoring plan required by 
Sec.  63.122(b) shall be included in the Notification of Compliance 
Status required by Sec.  63.506(e)(5).
    (m) When the Notification of Compliance Status requirements 
contained in Sec.  63.152(b) are referred to in Sec. Sec.  63.120, 
63.122, and 63.123, the Notification of Compliance Status requirements 
contained in Sec.  63.506(e)(5) shall apply for the purposes of this 
subpart.
    (n) When the Periodic Report requirements contained in Sec.  
63.152(c) are referred to in Sec. Sec.  63.120 and 63.122, the Periodic 
Report requirements contained in Sec.  63.506(e)(6) shall apply for the 
purposes of this subpart.
    (o) When other reports as required in Sec.  63.152(d) are referred 
to in Sec.  63.122, the reporting requirements contained in Sec.  
63.506(e)(7) shall apply for the purposes of this subpart.
    (p) When the Initial Notification requirements contained in Sec.  
63.151(b) are referred to in Sec. Sec.  63.119 through 63.123, for the 
purposes of this subpart the owner or operator of an affected source 
need not comply.
    (q) When the determination of equivalence criteria in Sec.  
63.102(b) are referred to in Sec.  63.121(a), the provisions in

[[Page 587]]

Sec.  63.6(g) shall apply for the purposes of this subpart.
    (r) When Sec.  63.119(a) requires compliance according to the 
schedule provisions in Sec.  63.100, owners and operators of affected 
sources shall instead comply with the requirements in Sec. Sec.  
63.119(a)(1) through 63.119(a)(4) by the compliance date for storage 
vessels, which is specified in Sec.  63.481.
    (s) In Sec.  63.120(e)(1), instead of the reference to Sec.  
63.11(b), the requirements of Sec.  63.504(c) shall apply.

[62 FR 46925, Sept. 5, 1996, as amended at 65 FR 38049, June 19, 2000]