A bill to amend title 23, United States Code, to establish uniform weight and length limitations for vehicles operating on the National System of Interstate and Defense Highways, and for other purposes.

Prohibits Federal-aid highway funding for any State which prohibits vehicles with an overall gross weight of less than 80,000 pounds or an overall length of less than 65 feet from using highways on the Interstate System within such State.

Directs the Secretary of Transportation to recommend and promote uniform standards and procedures for the administration of State motor fuel taxes and the licensing or registration of motor vehicles utilized in carrying freight in interstate commerce and to facilitate cooperation among the States in the use of efficient methods of administering the registration, licensing, and taxation of such vehicles.