Proposed Rule and Related Materials for Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles - Phase 2

Rule Summary

The U.S. Environmental Protection Agency (EPA) and the Department of Transportation’s National Highway Traffic Safety Administration (NHTSA)  jointly proposed a national program to establish the next phase of greenhouse gas (GHG) emissions and fuel efficiency standards for medium- and heavy-duty vehicles. This “Phase 2 program” would significantly reduce carbon emissions and improve the fuel efficiency of heavy-duty vehicles, helping to address the challenges of global climate change and energy security.

• Proposed Rule (PDF) (629 pp, 5.2 MB, published July 13, 2015)

Related Materials

Fact Sheet

• Cutting Carbon Pollution, Improving Fuel Efficiency, Saving Money, and Supporting Innovation for Trucks (PDF) (3 pp, 130 K, EPA-420-F-15-900, June 2015)
• EPA and NHTSA Propose Standards to Reduce Greenhouse Gas Emissions and Improve Fuel Efficiency of Medium- and Heavy-Duty Vehicles for Model Year 2018 and Beyond (PDF) (6 pp, 139 K, EPA-420-F-15-901, June 2015)
• EPA and NHTSA Propose Greenhouse Gas and Fuel Efficiency Standards for Medium- and Heavy-Duty Trucks: By the Numbers (PDF) (3 pp, 515 K, EPA-420-F-15-903, June 2015)

Frequently Asked Questions

• Proposed EPA and NHTSA Regulation of Commercial Trailers Used with Combination Tractors (PDF) (4 pp, 508 K, EPA-420-F-15-902, June 2015)
• Frequently Asked Questions about Heavy-Duty “Glider Vehicles” and “Glider Kits” (PDF) (5 pp, 581 K, EPA-420-F-15-904, July 2015)

Other

• Draft Regulatory Impact Analysis (PDF) (971 pp, 8.5 MB, EPA-420-D-15-900, June 2015)
• Notice of Data Availability (PDF) (5 pp, 224 K, published March 2, 2016)