EPA Proposes Trucking Regulatory Reform
Responding to complaints from all segments of the industry, from manufacturers down to drivers, the U.S. Environmental Protection Agency (EPA) in July proposed changes and reforms to multiple heavy-duty engine regulations adopted in 2023, with the headline grabbing move a proposal to eliminate the super-frustrating “deratements” (software-driven engine slowdowns) caused by diesel exhaust fluid (DEF) system failures.
For deratements, the proposal seeks to eliminate speed restrictions and replace the gradual power output reduction (to 5 MPH in many cases) with audible and visual dashboard alerts concerning DEF-related emissions issues. EPA officials note the proposed changes could save the industry up to $12 billion annually and take as much as $6,000 off the price of a new truck.
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