The proposed standards on cars and light trucks, set to be announced Wednesday in Detroit, are expected to govern tailpipe emissions of carbon dioxide, smog-forming nitrogen oxide and other pollution from vehicles manufactured for model years 2027 through 2032. The plan was described by people briefed on elements of the proposal who asked not to be named because it isn’t yet public.
Major U.S. automakers have pleaded for requirements extending just a few years, while EV manufacturers such as Tesla Inc. insist the administration should take advantage of new federal-government investments in charging and battery production to push for even stricter limits on car emissions.
The plan is part of a multipronged Biden administration strategy to clamp down on planet-warming pollution from transportation and electricity, taking advantage of hundreds of billions of dollars of clean energy incentives under the Inflation Reduction Act. The Environmental Protection Agency, which is writing the new requirements, is also set to propose new rules for greenhouse gas releases from heavy-duty trucks on Wednesday and power plants as soon as later this month.
Limits on car pollution are key to helping the U.S. meet its Paris Agreement commitment to slash greenhouse gas emissions by at least 50 percent from 2005 levels by the end of the decade and fulfilling President Joe Biden’s ambition for at least half of all new vehicle sales to be electric models by 2030.