On May 19, 2025, the Senate voted to disapprove a rule submitted by the National Highway Traffic Safety Administration (NHTSA) regarding fuel system integrity of hydrogen vehicles and compressed hydrogen storage systems.

The NHTSA proposed this rule as part of its efforts to establish standards for the safe operation of hydrogen fuel cell electric vehicles. The proposed standard would have required manufacturers to meet certain safety requirements, including those related to the integrity of the fuel system and storage systems.

A joint resolution (H.J.Res. 55) was introduced in both the House and Senate on May 19, 2025, which aimed to disapprove the NHTSA rule. The resolution was referred to the Committee on Commerce, Science, and Transportation.

The joint resolution was read twice and adopted by both the House of Representatives and the Senate on May 19, 2025. As a result, the rule submitted by NHTSA shall have no force or effect.

1. Resolved by the Senate and House of Representatives of the United States of America in Congress assembled,
2. That Congress disapproves the rule submitted by the National Highway Traffic Safety Administration relating to “Federal Motor Vehicle Safety Standards; Fuel System Integrity of Hydrogen Vehicles; Compressed Hydrogen Storage System Integrity; Incorporation by Reference” (90 Fed. Reg. 6218 (January 17, 2025)), and such rule shall have no force or effect.