H.R.9618

DEF Act Diesel Engine Flexibility Act

Introduced·7/9/26
Introduced

H. R. 9618

Introduced in House · July 10, 2026

July 9, 2026

Mrs. Fedorchak (for herself, Mr. Davis of North Carolina, Mr. Finstad, Mr. Bergman, and Mrs. Fischbach) introduced the following bill; which was referred to the Committee on Energy and Commerce

A BILL

To amend the Clean Air Act to preserve regulatory stability for motor vehicles, motor vehicle engines, nonroad vehicles, and nonroad engines, 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 “Diesel Engine Flexibility Act” or the “DEF Act”.