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)(2 pp, 333 K, August 17, 2017)
• Letter from Former EPA Administrator E. Scott Pruitt to Indiana Phoenix Inc. (PDF)(1 pg, 65 K, August 17, 2017)
• Letter from Former EPA Administrator E. Scott Pruitt to Harrison Truck Centers Inc. (PDF)(1 pg, 106 K, August 17, 2017)
• Letter from Former EPA Administrator E. Scott Pruitt to Fitzgerald Glider Kits (PDF)(1 pg, 106 K, 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)(13 pp, 1 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)(9 pp, 2 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)(6 pp, 2 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)(4 pp, 829 K, 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)(16 pp, 2 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)(15 pp, 887 K, December 23, 2016)