Federal Register: EPA Issues Proposed Rule on Model Year 2027 HD Highway Engine Penalties, SCR Inducement Amendments
July 14, 2026
July 14, 2026
WASHINGTON, July 14 (TNSFR) -- The U.S. Environmental Protection Agency (EPA) is proposing regulatory amendments to certain compliance provisions and test procedures related to model year (MY) 2027 and later heavy-duty highway engines. These amendments would include changes to the regulatory useful life periods and the emission-related warranty periods. The EPA also proposes to add clarity to certain regulatory compliance provisions and correct errors in the regulations to support the MYs 2027 a . . .