Story perspectives

EPA May Delay Biden's Vehicle Pollution Reduction Rules

12/11/2025

Summary

Story summary

The U.S. Environmental Protection Agency is considering delaying enforcement of a Biden administration rule that requires large reductions in vehicle air pollution.
The rule, finalized in April 2024, targets nitrogen oxides from vehicles produced between 2027 and 2032.
The agency may extend the 2026 standards for two years to reassess Biden-era regulations.
The agency has proposed revoking the scientific basis for greenhouse gas emission standards across vehicle types.

1 of 1

Story summary

The U.S. Environmental Protection Agency is considering delaying enforcement of a Biden administration rule that requires large reductions in vehicle air pollution.
The rule, finalized in April 2024, targets nitrogen oxides from vehicles produced between 2027 and 2032.
The agency may extend the 2026 standards for two years to reassess Biden-era regulations.
The agency has proposed revoking the scientific basis for greenhouse gas emission standards across vehicle types.