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  2. 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.

  • Review EPA’s rulemaking responding to the petitions related to glider vehicles.
  • Details on the public hearing on the proposed rule "Repeal of Emission Requirements for Glider Vehicles, Glider Engines, and Glider Kits"
  • Letter from Former EPA Administrator E. Scott Pruitt to the Truck Trailer Manufacturers Association (pdf) (325.36 KB, August 17, 2017)
  • Letter from Former EPA Administrator E. Scott Pruitt to Indiana Phoenix Inc. (pdf) (63.45 KB, August 17, 2017)
  • Letter from Former EPA Administrator E. Scott Pruitt to Harrison Truck Centers Inc. (pdf) (103.36 KB, August 17, 2017)
  • Letter from Former EPA Administrator E. Scott Pruitt to Fitzgerald Glider Kits (pdf) (103.46 KB, August 17, 2017)
  • Petition for Reconsideration of Application of the Final Rule Entitled "Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles—Phase 2 Final Rule" to Gliders from Fitzgerald Glider Kits, LLC; Harrison Truck (pdf) (1.11 MB, July 10, 2017)
  • Petition for Reconsideration of the "Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles — Phase 2"; Final Rule, 81 FR 73478 (10/25/16) from Racing Enthusiasts and Suppliers Coalition (pdf) (1.52 MB, December 27, 2016)
  • Petition for Reconsideration and Amendment of Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles-Phase 2, Final Rule, 81 Fed. Reg. 73478 (October 25, 2016) Rubber Manufacturers Association (pdf) (1.73 MB, December 23, 2016)
  • Request to Reconsider and Stay Phase 2 GHG and Fuel Efficiency Standards for Truck Trailers from Truck Trailer Manufacturers Association (pdf) (810.03 KB, April 3, 2017)
  • Supplement to Petition for Reconsideration and Stay Phase 2 GHG and Fuel Efficiency Standards for Truck Trailers from Truck Trailer Manufacturers Association (pdf) (2.22 MB, June 26, 2017)
  • Request for Reconsideration of Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium-and Heavy‐Duty Engines and Vehicles—Phase 2, Final Rule, 81 Fed. Reg. 73,478 (Oct. 25, 2016) from National Biodiesel Board (pdf) (866.57 KB, December 23, 2016)

Regulations for Emissions from Vehicles and Engines

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  • Greenhouse Gas
Contact Us About Regulations for Emissions from Vehicles and Engines
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Last updated on April 28, 2025
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