Light- and Medium-Duty Proposed Standards for Model Years 2027 and Later
EPA is proposing to set new, more ambitious emissions standards for light- and medium-duty vehicles for model year (MY) 2027 and later. The standards proposed are expected to provide significant benefits for the climate, for public health, and for consumers.
The proposed standards leverage advances in clean vehicle technologies and market shifts towards zero-emissions vehicles to unlock meaningful benefits for public health from cleaner air, while providing drivers with lower operating costs resulting from significant fuel savings. EPA estimates the net benefits of the proposal range from $850 billion to $1.6 trillion.
The proposed standards would significantly reduce passenger car, light truck, and medium-duty vehicle emissions of CO2, hydrocarbons, nitrogen oxides, and particulate matter, which would result in widespread reductions in air pollution that contribute to climate change and unhealthy air. Reductions in these harmful pollutants would lead to lower hospital admissions and emergency department visits, fewer cases of asthma symptoms, lost workdays, and school days for children.
Between 2027 and 2055, the proposed standards would cumulatively reduce vehicle emissions by 8,000 billion metric tons of CO2. In 2055, the proposal would reduce harmful air pollutants, including approximately 9,800 tons of particulate matter, 44,000 tons of nitrogen oxides, and 200,000 tons of volatile organic compounds, compared to 2055 levels without the proposal.
The proposed light-duty vehicle standards are projected to result in an industry-wide average target for the light-duty fleet of 82 grams/mile of CO2 in MY 2032, representing a 51 percent reduction in projected fleet average greenhouse gas emissions target levels from the existing MY 2026 standards. When fully phased in, the medium-duty vehicle standards are projected to result in an average target of 275 grams/mile of CO2 by MY 2032, which would represent a reduction of 44 percent when compared to the current MY 2026 standards.
The light- and medium-duty proposal builds upon EPA’s final standards for federal greenhouse gas emissions standards for passenger cars and light trucks for MY 2023 through 2026 and leverages advances in clean car technology to unlock many benefits to Americans, including reducing climate pollution, improving public health, and saving drivers money through reduced fuel and maintenance costs.