EPA Proposes Revisions to Biden-Era Trucker Rule, Aiming for $12 Billion in Savings

The U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin announced a proposed rule to revise Biden-era compliance requirements for model year 2027 and later heavy-duty highway engines. The proposal, estimated to save American truckers $12 billion, aims to eliminate Diesel Exhaust Fluid (DEF) system deratements and provide more practical compliance options.