[Code of Federal Regulations]
[Title 40, Volume 17]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR86.090-21]

[Page 114-117]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 86_CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND 
ENGINES--Table of Contents
 
Subpart A_General Provisions for Emission Regulations for 1977 and Later 
 
Sec. 86.090-21  Application for certification.

    (a) A separate application for a certificate of conformity shall be 
made for each set of standards (or family emission limits, as 
appropriate) and each class of new motor vehicles or new motor vehicle 
engines. Such application shall be made to the Administrator by the 
manufacturer and shall be updated and corrected by amendment.
    (b) The application shall be in writing, signed by an authorized 
representative of the manufacturer, and shall include the following:
    (1)(i) Identification and description of the vehicles (or engines) 
covered by the application and a description of their engine (vehicles 
only), emission control system and fuel system components. This shall 
include a detailed description of each auxiliary emission control device 
(AECD) to be installed in or on any certification test vehicle (or 
certification test engine).
    (ii)(A) The manufacturer shall provide to the Administrator in the 
application for certification:
    (1) A list of those parameters which are physically capable of being 
adjusted (including those adjustable parameters for which access is 
difficult) and that, if adjusted to settings other than the 
manufacturer's recommended setting, may affect emissions;
    (2) A specification of the manufacturer's intended physically 
adjustable range of each such parameter, and the production tolerances 
of the limits or stops used to establish the physically adjustable 
range;
    (3) A description of the limits or stops used to establish the 
manufacturer's intended physically adjustable range of each adjustable 
parameter, or any other means used to inhibit adjustment;
    (4) The nominal or recommended setting, and the associated 
production tolerances, for each such parameter.
    (B) The manufacturer may provide, in the application for 
certification, information relating to why certain parameters are not 
expected to be adjusted in actual use and to why the physical limits or 
stops used to establish the physically adjustable range of each 
parameter, or any other means

[[Page 115]]

used to inhibit adjustment, are expected to be effective in preventing 
adjustment of parameters on in-use vehicles to settings outside the 
manufacturer's intended physically adjustable ranges. This may include 
results of any tests to determine the difficulty of gaining access to an 
adjustment or exceeding a limit as intended or recommended by the 
manufacturer.
    (C) The Administrator may require to be provided detailed drawings 
and descriptions of the various emission related components, and/or 
hardware samples of such components, for the purpose of making his 
determination of which vehicle or engine parameter will be subject to 
adjustment for new certification and Selective Enforcement Audit testing 
and of the physically adjustable range for each such vehicle or engine 
parameter.
    (2) Projected U.S. sales data sufficient to enable the Administrator 
to select a test fleet representative of the vehicles (or engines) for 
which certification is requested. The sales data shall also include the 
altitude of intended sale for light-duty trucks.
    (3) A description of the test equipment and fuel proposed to be 
used.
    (4)(i) For light-duty vehicles and light duty trucks, a description 
of the test procedures to be used to establish the evaporative emission 
deterioration factors required to be determined and supplied in Sec. 
86.090-23(b)(2).
    (ii) For heavy duty vehicles equipped with gasoline-fueled or 
methanol-fueled engines, the Administrator does not assume that each 
evaporative emission family-evaporative emission control system 
combination will deteriorate in a unique manner during the useful life 
of the vehicle. The manufacturer shall therefore identify those 
evaporative emission deterioration factors which shall be applied to the 
various evaporative emission family-evaporative emission control system 
combinations which are expected to exhibit similar deterioration 
characteristics during the useful life of the vehicle.
    (iii)(A) A description of the test procedures to be used to 
establish the durability data or the exhaust emission deterioration 
factors required to be determined and supplied in Sec. 86.088-23(b)(1).
    (B)(1) For engine families provided an alternative useful-life 
period under paragraph (f) of this section, a statement of that 
alternative period and a brief synopsis of the justification.
    (2) For heavy-duty diesel engine families, a statement of the 
primary intended service class (light, medium, or heavy) and an 
explanation as to why that service class was selected. Each diesel 
engine family shall be certified under one primary intended service 
class only. After reviewing the guidance in Sec. 86.085-2, the class 
shall be determined on the basis of which class best represents the 
majority of the sales of that engine family.
    (C)(1) A statement of recommended maintenance and procedures 
necessary to assure that the vehicles (or engines) covered by a 
certificate of conformity in operation conform to the regulations, and a 
description of the program for training of personnel for such 
maintenance, and the equipment required.
    (2) A description of vehicle adjustments or modifications necessary, 
if any, to assure that light-duty vehicles and light-duty trucks covered 
by a certificate of conformity conform to the regulations while being 
operated at any altitude locations, and a statement of the altitude at 
which the adjustments or modifications apply.
    (D) At the option of the manufacturer, the proposed composition of 
the emission-data test fleet or (where applicable) the durability-data 
test fleet.
    (5)(i)(A) If the manufacturer elects to participate in the 
particulate averaging program for diesel light-duty vehicles and/or 
diesel light-duty trucks, the application must list the family 
particulate emission limit and the projected U.S. production volume of 
the family for the model year.
    (B) The manufacturer shall choose the level of the family 
particulate emission limits, accurate to one-hundredth of a gram per 
mile.
    (C) The manufacturer may at any time during production elect to 
change the level of any family diesel particulate emission limit(s) by 
submitting the new limit(s) to the Administrator and by demonstrating 
compliance with the limit(s) as described in Sec. 86.085-2 and Sec. 
86.088-28(b)(5)(i).

[[Page 116]]

    (ii)(A) If the manufacturer elects to participate in the 
NOX averaging program for light-duty trucks, the application 
must list the family NOX emission limit and the projected 
U.S. production volume of the family for the model year.
    (B) The manufacturer shall choose the level of the family 
NOX emission limits, accurate to one-tenth of a gram per 
mile.
    (C) The manufacturer may at any time during production elect to 
change the level of any family NOX emission limit(s) by 
submitting the new limits to the Administrator and by demonstrating 
compliance with the limit(s) as described in Sec. 86.088-2 and Sec. 
86.088-28(b)(5)(ii).
    (iii) If the manufacturer elects to participate in any of the 
particulate and/or the NOX banking programs for heavy-duty 
engines, the application must list the information required in 
Sec. Sec. 86.091-15 and 86.090-23.
    (6)(i) For Otto-cycle heavy-duty engines, the application must state 
whether the engine family is being certified for use in all vehicles 
regardless of their Gross Vehicle Weight Rating (see Sec. 86.088-10 
(a)(1)(i) and (a)(3)(i)), or, only for use in vehicles with a Gross 
Vehicle Weight Rating greater than 14,000 pounds.
    (ii) If the engine family is being certified for use in all vehicles 
and, is being certified to the emission standards applicable to Otto-
cycle heavy-duty engines for use only in vehicles with a Gross Vehicle 
Weight Rating over 14,000 pounds under the provisions of paragraph 
(a)(3) of Sec. 86.088-10, then the application must also attest that 
the engine family, together with all other engine families being 
certified under the provisions of paragraph (a)(3) of Sec. 86.088-10, 
represent no more than 5 percent of model year sales of the manufacturer 
of all Otto-cycle heavy duty engines for use in vehicles with Gross 
Vehicle Weight Ratings of up to 14,000 pounds.
    (iii)(A) A description of the test procedures to be used to 
establish the durability data or the exhaust emission deterioration 
factors required to be determined and supplied in Sec. 86.088-23(b)(1).
    (B)(1) A statement of the useful life of use of each light-duty 
truck engine family and heavy-duty engine family.
    (2) For engine families provided an alternative useful life period 
under paragraph (f) of this section, a statement of that alternative 
period and a brief synopsis of the justification.
    (3) For heavy-duty diesel engine families, a statement of the 
primary intended service class (light, medium, or heavy) and an 
explanation as to why that service class was selected. Each diesel 
engine family shall be certified under one primary intended service 
class only. After reviewing the guidance in Sec. 86.085-2, the class 
shall be determined on the basis of which class best represents the 
majority of the sales of that engine family.
    (7) For each light-duty vehicle engine family, a statement of 
recommended maintenance and procedures necessary to assure that the 
vehicles (or engines) covered by a certificate of conformity in 
operation conform to the regulations, and a description of the program 
for training of personnel for such maintenance and the equipment 
required.
    (8) For each light-duty vehicle engine family, the proposed 
composition of the emission-data test fleet and the durability-data test 
fleet.
    (c) Complete copies of the application and of any amendments 
thereto, and all notifications under Sec. 86.079-32, Sec. 86.079-33, 
and Sec. 86.082-84 shall be submitted in such multiple copies as the 
Administrator may require.
    (d) Incomplete light-duty trucks shall have a maximum completed curb 
weight and maximum completed frontal area specified by the manufacturer.
    (e) For vehicles equipped with gasoline-fueled or methanol-fueled 
heavy-duty engines, the manufacturer shall specify a maximum nominal 
fuel tank capacity for each evaporative emission family-evaporative 
emission control system combination.
    (f) Light-duty truck and heavy-duty engine manufacturers who believe 
that the useful life periods of Sec. 86.085-2 are significantly 
unrepresentative for one or more engine families (either too long or too 
short), may petition the Administrator to provide an alternative useful-
life period. This petition must include the full rationale behind

[[Page 117]]

the request together with any supporting data and other evidence. Based 
on this or other information the Administrator may assign an alternative 
useful-life period. Any petition should be submitted in a timely manner, 
to allow adequate time for a thorough evaluation.

[54 FR 14468, Apr. 11, 1989, as amended at 55 FR 30618, July 26, 1990]