National Highway Traffic Safety Administration (U.S. DOT)

Rule Changes

Proposing weaker fuel‑economy standards that align with EPA’s softer emissions approach

The EPA isn’t killing Biden’s vehicle pollution rules outright. It’s slow‑walking them to the edge of a cliff. A senior official says the agency plans to keep looser 2026 standards in place for two extra model years instead of enforcing tougher limits on smog‑forming pollution starting in 2027.

Updated Dec 12, 2025