Transport Secretary Seeking the Return of the Bite’s Fuel Economist standards

The newly confirmed transport secretary, Sean Duffy, signed an order on Tuesday trying to roll the most important fuel economy standards set by President Joseph R. Biden Jr.

The order is the latest effort from the Trump administration to roll back initiatives introduced by the Biden administration aimed at promoting electric vehicles and reducing greenhouse gas emissions.

In one memo For the National Highway Traffic Safety Administration, Mr. Duffy the agency to reassess the rules of fuel economy for new cars and trucks through the end of the decade. The order came as one of Mr. Duffy’s first acts as head of the Department of Transport.

The Biden -Fuel Economics standards require US car manufacturers’ passenger cars an average of 65 miles per day. Gallon in 2031, up from 48.7 miles last year. The average mileage for light trucks, including pickup trucks and sports cars, should reach 45 miles per day. Gallon, up from 35.1 miles per Gallon.

Some car manufacturers have criticized the rule as a costly distortion of the market.

“Artificially high fuel economy standards,” said the Transport Secretary’s memo, “imposing great costs that make many new vehicle models unaffordable to the average American family and small business owner.”

Mr. Duffy, a former Wisconsin representative, was confirmed earlier in the day despite a late wave of resistance from some Democrats who are upset over the Trump administration’s freezing of federal grants and loans. The final vote was 77 to 22.

In his memo, Mr. Duffy doubts as to whether the current fuel economy standards exactly reflect the abundant states’ abundant oil reserves and refining functions. The memo states that these standards may not take into account the vulnerability of the US electricity grid or national security risks by relying on foreign sources of materials, especially those used in electric vehicle batteries.

Mr. Duffys Memo instructs the National Highway Traffic Safety Administration to review all fuel economy standards for vehicles from the 2022 model year and in the future.