Cold Weather Diesel Reliability Act of 2025

[Congressional Bills 119th Congress] [From the U.S. Government Publishing Office] [H.R. 6250 Introduced in House (IH)] <DOC> 119th CONGRESS 1st Session H. R. 6250 To require the Administrator of the Environmental Protection Agency to authorize manufacturers of certain vehicles to suspend engine derate or shutdown functions in prolonged cold weather conditions, and for other purposes. _______________________________________________________________________ IN THE HOUSE OF REPRESENTATIVES November 21, 2025 Mr. Begich introduced the following bill; which was referred to the Committee on Energy and Commerce _______________________________________________________________________ A BILL To require the Administrator of the Environmental Protection Agency to authorize manufacturers of certain vehicles to suspend engine derate or shutdown functions in prolonged cold weather conditions, and for other purposes. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, SECTION 1. SHORT TITLE. This Act may be cited as the ``Cold Weather Diesel Reliability Act of 2025''. SEC. 2. FINDINGS. Congress finds that-- (1) diesel vehicles are vital for critical transportation and emergency services in cold weather regions; (2) in rural regions with prolonged freezing conditions, diesel exhaust fluid storage, supply, and system functionality are frequently unreliable and logistically impractical on a year-round basis; (3) automatic engine shutdowns and power reductions due to emissions control malfunctions in extreme cold pose serious, life-threatening risks; and (4) emissions safeguards under the Clean Air Act (42 U.S.C. 7401 et seq.) were never intended to jeopardize human safety or impede critical mobility. SEC. 3. DEFINITIONS. In this Act: (1) Administrator.--The term ``Administrator'' means the Administrator of the Environmental Protection Agency. (2) Covered manufacturer.--The term ``covered manufacturer'' means the manufacturer (a