U.S. Department of Energy: Energy Efficiency and Renewable Energy

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EPA Streamlines Alternative Fuel Conversion Compliance Requirements

March 30, 2011

EPA is streamlining the process by which manufacturers of clean alternative fuel conversion systems may demonstrate compliance with vehicle and engine emissions requirements. Specifically, EPA is revising the regulatory criteria for gaining an exemption from the Clean Air Act prohibition against tampering for the conversion of vehicles and engines to operate on a clean alternative fuel. This final rule creates additional compliance options beyond certification that protect manufacturers of clean alternative fuel conversion systems against a tampering violation, depending on the age of the vehicle or engine to be converted. The new options alleviate some economic and procedural impediments to clean alternative fuel conversions while maintaining environmental safeguards to ensure that acceptable emission levels from converted vehicles are sustained. The new rule is effective on 30 March 2011. For more information, review the Final Rule on Clean Alternative Fuel Vehicle and Engine Conversions.

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Content Last Updated: 01/25/2010