To direct the Secretary of Transportation to issue regulations to modify the gross combination weight rating of a vehicle covered under Group B, and for other purposes.

Not later than 30 days after the date of enactment of this Act, the Secretary of Transportation shall issue such regulations as are necessary to revise section 383.91(a)(2) of title 49, Code of Federal Regulations, to increase the gross combination weight rating for a single vehicle covered under Group B to 30,001 pounds.