Question of the Month: Which states have adopted the California Air Resources Board (CARB) aftermarket conversion certification requirements?
Answer: In
the United States, all aftermarket conversion systems (except pure
battery electric vehicles) must meet current applicable U.S.
Environmental
Protection Agency (EPA) standards. EPA instituted these standards to
assure that a vehicle’s tailpipe emissions do not increase as a result
of the conversion. For more information on EPA standards for vehicle and
engine conversions, please refer to the EPA
Alternative Fuel Conversion website (http://epa.gov/otaq/consumer/ fuels/altfuels/altfuels.htm).
CARB
has set its own standards for alternative fuel conversion systems, which
are more stringent than those of EPA. Manufacturers that wish to sell
aftermarket conversion systems for use in California must meet
CARB standards and obtain approval from CARB. While EPA accepts all
CARB certifications to meet their standards, EPA certificates of
conformity and tampering exemptions are not required by CARB and cannot
take the place of CARB certification.
In
addition to impacting the sale and use of aftermarket conversion systems
in California, the CARB conversion standards also impact some of the 13
other states that have adopted CARB’s overall motor vehicle emissions
regulations. The table below shows the states that have adopted CARB’s
vehicle emissions standards in whole or in part. It also indicates
whether each state enforces EPA or CARB aftermarket conversion
standards.
State
|
Conversion Standards Enforced
|
California
|
CARB
|
Connecticut
|
EPA
|
District of Columbia
|
EPA
|
Maine
|
EPA
|
Maryland
|
CARB
|
Massachusetts
|
EPA
|
New Jersey
|
CARB (but also accepts EPA)
|
New Mexico
|
EPA
|
New York
|
CARB
|
Oregon
|
EPA
|
Pennsylvania
|
CARB (but also accepts EPA)
|
Rhode Island
|
EPA
|
Vermont
|
EPA
|
Washington
|
EPA
|
For more information about CARB aftermarket conversion certification, please refer to the following resources:
·
CARB Alternative Fuel Retrofit Systems Program:
http://www.arb.ca.gov/msprog/ aftermkt/altfuel/altfuel.htm
o
This website links to a list of certified alternative fuel retrofit systems.
·
CARB Aftermarket Parts Database of Executive Orders:
http://www.arb.ca.gov/msprog/ aftermkt/devices/amquery.php
o
This
database includes information about conversion systems that have been
granted exemptions to emissions control system-anti-tampering
regulations by CARB.
Also
refer to the following resources for information about the requirements
in other states that enforce CARB conversion standards:
·
Maryland
·
New
York
o
New York State Department of Environmental Conservation Regulations, Chapter III – Air Resources, Part 218 (http://www.dec.ny.gov/regs/ 2492.html)
·
New Jersey
o
State
of New Jersey Department of Environmental Protection Memorandum on
Aftermarket Conversion Systems for Alternative Fuels (see attached)
·
Pennsylvania
o
Pennsylvania Department of Environmental Protection, Bureau of Air Quality Policy on Clean Alternative Fuel Conversion Systems (http://files.dep.state.pa.us/ AboutDEP/AboutDEPPortalFiles/ RemarksAndTestimonies/ NaturalGasVehicleConversionSys tems/PCVConversionPolicyFinal. pdf)
For general information about conversion regulations, visit the Alternative Fuels Data Center Conversion Regulations page (http://www.afdc.energy.gov/ vehicles/conversions_ regulations.html).
Also see the NGVAmerica Aftermarket Conversion Systems: EPA and CARB Regulations website (http://www.ngvc.org/gov_ policy/fed_regs/fed_ AfterMarket.html).
Clean Cities Technical Response Service Team
800-254-6735