I 
111TH CONGRESS 
1ST SESSION H. R. 3431 
To amend the Clean Air Act to promote the certification of aftermarket 
conversion systems and thereby encourage the increased use of alternative 
fueled vehicles. 
IN THE HOUSE OF REPRESENTATIVES 
JULY 30, 2009 
Mr. SHULER (for himself and Mr. BOREN) introduced the following bill; which 
was referred to the Committee on Energy and Commerce 
A BILL 
To amend the Clean Air Act to promote the certification 
of aftermarket conversion systems and thereby encourage 
the increased use of alternative fueled vehicles. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. SHORT TITLE. 
This Act may be cited as the ‘‘Streamline Vehicle 
Conversions Act’’. 
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SEC. 2. EMISSION CERTIFICATION REQUIREMENTS FOR 
AFTERMARKET CONVERSION SYSTEMS. 
Part A of title II of the Clean Air Act (42 U.S.C. 
7521 et seq.) is amended by adding at the end the fol-
lowing: 
‘‘SEC. 220. EMISSION CERTIFICATION REQUIREMENTS FOR 
AFTERMARKET CONVERSION SYSTEMS. 
‘‘(a) DEFINITIONS.—In this section: 
‘‘(1) AFTERMARKET
CONVERSION
SYSTEM.— 
The term ‘aftermarket conversion system’ has the 
meaning given the term in section 85.502 of title 40, 
Code of Federal Regulations (as in effect on the 
date of enactment of this section). 
‘‘(2) 
AFTERMARKET
CONVERSION
TEST 
GROUP.—The term ‘aftermarket conversion test 
group’ means a group of vehicles or engines identi-
fied pursuant to subsection (b)(4) for the purpose of 
testing aftermarket conversion systems. 
‘‘(b) CERTIFICATES OF CONFORMITY.— 
‘‘(1) 
IN
GENERAL.—In 
the 
case 
of 
an 
aftermarket conversion system, the certificate of 
conformity issued by the Administrator for 1 or 
more aftermarket conversion test groups— 
‘‘(A) shall not expire; and 
‘‘(B) shall continue to apply in subsequent 
calendar years. 
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‘‘(2) SUBSEQUENT RECERTIFICATION.—No re-
certification of an aftermarket conversion system 
shall be required with respect to the aftermarket 
conversion test group covered by the certificate. 
‘‘(3) NAME
CHANGES.—The names of test 
groups covered by a certificate of conformity de-
scribed in paragraph (1) shall not change from year 
to year. 
‘‘(4) IDENTIFICATION OF MULTIPLE VEHICLE 
MAKES, MODELS, MANUFACTURERS, AND
STAND-
ARDS.—For purposes of aftermarket conversion, the 
Administrator shall— 
‘‘(A) establish criteria for use in identi-
fying similar vehicle makes, models, original 
equipment manufacturers, emission standards, 
and different model years that may be used 
under a single aftermarket conversion test 
group; 
‘‘(B) accept the aftermarket conversion 
test group established under subparagraph (A) 
on an aftermarket conversion system manufac-
turer application for a certificate of conformity. 
‘‘(c) CARRYOVER CERTIFICATION FOR ADDITIONAL 
MODEL YEARS.—At the request of an aftermarket conver-
sion system manufacturer, the Administrator shall allow 
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the submission of previous vehicle emission test data and 
on-board diagnostic II system test data for the certifi-
cation of additional model year vehicles if the aftermarket 
conversion system manufacturer is able to demonstrate 
that neither the aftermarket conversion system nor the de-
sign and specifications of the applicable vehicle model are 
substantially different, from those identified in the origi-
nal certificate of conformity, in a way that could affect 
the compliance of the aftermarket conversion system. 
‘‘(d) CARRY-ACROSS CERTIFICATION.—The Adminis-
trator 
shall 
promulgate 
regulations 
to 
allow 
an 
aftermarket conversion system manufacturer to use emis-
sion test data and on-board diagnostic II system test data 
generated for a single certified test group to serve as the 
basis for certifying additional test groups upon a showing 
that the additional test groups are sufficiently similar, 
even if produced by different original equipment manufac-
turers. 
‘‘(e) USE
OF
ASSIGNED
DETERIORATION
FAC-
TORS.—A manufacturer of aftermarket conversion sys-
tems may use deterioration factors assigned by the Envi-
ronmental Protection Agency without regard to any sales 
limits imposed on small-volume manufacturers. 
‘‘(f) WAIVER
OF
CERTAIN
TESTING
REQUIRE-
MENTS.—In certifying an aftermarket conversion system, 
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the Administrator shall waive any emission testing and 
nonexhaust emission testing requirements pertaining to 
the fuel on which the vehicle or engine was originally cer-
tified to run, if the aftermarket conversion system manu-
facturer is able to demonstrate that waiving the testing 
requirements is appropriate. 
‘‘(g) ON-BOARD DIAGNOSTIC REQUIREMENTS.—The 
Administrator shall promulgate regulations applicable to 
on-board diagnostic systems for aftermarket conversion 
systems that— 
‘‘(1) ensure that aftermarket conversion sys-
tems which are equipped with on-board diagnostic 
systems are effective at monitoring critical emission 
components; 
‘‘(2) take into account the inability of an 
aftermarket conversion system manufacturer to ac-
cess proprietary on-board diagnostic technology of 
an original equipment manufacturer; and 
‘‘(3) are sufficiently flexible to encourage the 
increased use of alternative fueled vehicles. 
‘‘(h) OLDER VEHICLES.— 
‘‘(1) IN GENERAL.—Conversion of a vehicle out-
side of the useful life of the vehicle, as specified on 
the certificate of conformity of the original equip-
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ment manufacturer, to alternative fuel operation 
shall not— 
‘‘(A) be considered to be tampering under 
section 203, if the aftermarket conversion sys-
tem manufacturer or the person performing the 
conversion is able to demonstrate that the de-
velopment and engineering sophistication of the 
conversion technology is— 
‘‘(i) matched to an appropriate vehicle 
or group of vehicles; and 
‘‘(ii) well-designed and installed in ac-
cordance with good engineering judgment 
so that the installation of the aftermarket 
conversion system does not degrade emis-
sion performance, as compared to the per-
formance of the vehicle or vehicles before 
the conversion; or 
‘‘(B) require the issuance by the Adminis-
trator of any certificate of conformity. 
‘‘(2) LABEL.—Upon conversion of a vehicle de-
scribed in paragraph (1), the person performing the 
conversion shall affix to the motor vehicle a label 
that includes a statement that— 
‘‘(A) the vehicle has been equipped with an 
aftermarket conversion system; and 
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‘‘(B) the installation of that system oc-
curred outside of the useful life of the vehicle. 
‘‘(3) NO PRECLUSION OF ORDERS.—Nothing in 
this section precludes the Administrator from 
issuing an order to prohibit the manufacture, sale, 
distribution, or installation of an aftermarket con-
version system if the Administrator has evidence 
that the installation of the aftermarket conversion 
system on a vehicle outside of the useful life of the 
vehicle degrades emission performance.’’. 
Æ 
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