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Regulations for Emissions from Vehicles and Engines

Petitions for Reconsideration of Phase 2 GHG Emissions and Fuel Efficiency Standards for Medium and Heavy Duty Vehicles

EPA has received petitions for reconsideration of the October 25, 2016 final rulemaking entitled "Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles—Phase 2 Final Rule" (81 FR 73,478), which promotes a new generation of cleaner, more fuel-efficient trucks by encouraging the development and deployment of new and advanced cost-effective technologies.

Petitions for reconsideration submitted to EPA related to the Heavy-Duty Greenhouse Gas Emissions program and the EPA response letters are listed below.

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