United States | New GHG Standards for Heavy-Duty Vehicles with Battery Warranty Requirements

The Environmental Protection Agency (EPA) is proposing new greenhouse gas (GHG) standards for heavy-duty highway vehicles starting in model year 2028 through MY 2032. The proposed rulemaking also includes revisions to certain GHG standards for MY 2027 and updates to the Averaging Banking and Trading program.

Of particular note, the proposal includes the elimination of the advanced technology incentive program for certain types of electric highway heavy-duty vehicles in the last model year of the HD GHG Phase 2 program. The EPA is also proposing the addition of warranty requirements for batteries and other components of zero-emission vehicles and the implementation of customer-facing battery state-of-health monitors for plug-in hybrid and battery electric vehicles.

The proposed revisions aim to reduce GHG emissions and protect the environment, with a two-day virtual public hearing to be held on May 2nd and 3rd, 2023. The EPA will also consider holding an additional session on May 4th, 2023, to accommodate the number of testifiers that sign up to testify.

Notifying member: United States of America

Notification: G/TBT/N/USA/1986

Objective tag: Protection of the environment (TBT)

Document: 23_9367_00_e.pdf