To amend title 23, United States Code, to authorize a hydrogen powered vehicle to exceed certain weight limits on the Interstate Highway System, and for other purposes.

This bill amends federal highway regulations to allow hydrogen fuel cell vehicles to exceed standard weight limits on interstate highways. It directly affects manufacturers and operators of hydrogen-powered vehicles by removing a current barrier related to their heavier fuel systems. The key change adds hydrogen fuel cell vehicles to the list of vehicle types (previously limited to gas and electric battery vehicles) eligible for the weight exemption, specifying vehicles "fueled primarily by hydrogen fuel cells" or using a combination of such power sources. This adjustment facilitates the use of hydrogen vehicles on interstate routes without requiring separate weight exemptions.