Requirements for Determining Assigned Deterioration Factors for Alternative Fuel Vehicles, Amendments to Labelling Requirements for Inherently Low-Emission Vehicles, and Related Provisions

This rulemaking promulgates actions to clarify and streamline existing regulations for certifiers and purchasers of clean-fuel and/or alternative fuel vehicles. This rule reduces the regulatory burden for industry, and it is highly accommodating to their concerns. To temporarily reduce the certification burden of the emerging industry of aftermarket conversions of alternative fuel vehicles, EPA will take action in this rule that will provide flexibility in the regulations for the determination of assigned deterioration factors for alternative fuel vehicles. To encourage the production of Inherently Low-Emission Vehicles (ILEVs), this rule also promulgates an amendment to allow additional options for external ILEV label dimensions. Also in this rule, EPA will amend two California Pilot Program (CPP) requirements: the method for determining a manufacturer's clean-fuel vehicle (CFV) sales quota and the method for administering CPP credits. This amendment to the method of administering credits will reduce a manufacturer's reporting requirements by a factor of four. Finally, this rule includes several additional technical amendments to the regulations issued under Clean Fuel Fleet Program and California Pilot Program final rules.