This technical report supersedes previous reports and details manufacturers’ performance towards meeting GHG standards in the 2015 model year, the fourth year of the GHG standards which become increasingly stringent in each model year from 2012 through 2025. Shows that overall industry performance in model year 2015 was 7 g/mi better than required by the 2015 GHG emissions standard. This marks the fourth consecutive model year of industry outperforming the standards by a sizeablemargin .
In this mandated final review of the standards, the EPA determined to leave the standards in place, stating that they “are projected to reduce oil consumption by 50 billion gallons and to save U.S. consumers nearly $92 billion in fuel cost over the lifetime of MY2022-2025 vehicles”, with minimal employment impacts. President Trump re-opened that decision in March 2017.