EPA- Environmental Protection Agency
www.epa.gov
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CARB-California Air Resources Board
www.arb.ca.gov
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SEMA- Specialty equipment Market Association
www.sema.org
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SAE-Society of Automotive Engineers
www.sae.org
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NHTSA-National Highway Traffic Safety Administration
www.nhtsa.dot.gov
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Department of Transportation
www.dot.gov
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