Environmental Protection Agency Administrator Lee Zeldin proposed rolling back parts of the Biden administration’s emission requirements for heavy-duty vehicles, claiming the changes would save truckers up to $12 billion.Zeldin announced the proposal for heavy-duty engines at the Trump administration’s Great American State Fair on the National Mall in Washington, D.C., on Thursday. The proposal is the latest step in the Trump administration’s efforts to reduce emission standards in the transportation sector on the basis of lowering costs for manufacturers.“Even if you’ve never driven a truck in your life, when it costs less to move goods, it costs less to buy them,” Zeldin said. “Those savings get passed down to you at the grocery store and the hardware store on nearly everything a truck delivers.”
Specifically, the EPA is proposing changes to the Biden administration’s heavy-duty truck emission rules. The Trump administration is proposing to “scale back” emissions-system warranty requirements, reducing how long manufacturers must cover repairs to pollution-control equipment. The agency said it would maintain the Biden administration’s requirement for a 90% reduction in nitrogen oxides.“So we protect the air, and we protect your pocketbook. It doesn’t have to be one or the other,” Zeldin said at the state fair. The EPA said it would also propose additional lead time before implementing regulatory requirements under the 2023 rule, allowing manufacturers more time before having to prove that emissions control systems meet federal standards.The proposal would also eliminate mandatory “deratements” for newly manufactured diesel trucks and other heavy equipment. Under the current rules, trucks automatically reduce engine power and speed when they detect problems with diesel exhaust fluid. Instead of trucks and tractors facing those automatic restrictions, they would be subject to warning lights and alarms. President Donald Trump and the EPA have sought to repeal emission standards for vehicles that would promote electric vehicle adoption. ENERGY DEPARTMENT FINALIZES $3 BILLION LOAN TO UPGRADE TEXAS GRID FOR DATA CENTER POWER DEMANDIn February, the Trump administration repealed the 2009 endangerment finding, which concluded that six greenhouse gases, including carbon dioxide and methane, pose a threat to public health and welfare. The repeal immediately rolled back vehicle emissions regulations.The administration has also repealed a waiver that allowed California to impose its own emissions regulations and eventually ban sales of gas cars. Through the One Big Beautiful Bill Act, passed by Republicans, it also ended subsidies for consumer purchases of electric vehicles.
