To amend title 49, United States Code, to clarify the use of a towaway trailer transportation combination, and for other purposes.

This bill revises federal vehicle length limitations to prohibit states from prescribing or enforcing a regulation that imposes an overall length limitation of less than 82 feet on a towaway trailer transporter combination operating on any segment of the Dwight D. Eisenhower System of Interstate and Defense Highways and qualifying federal-aid primary system highways. The bill defines "trailer transporter towing unit" as a power unit not used to carry property when operating in a towaway trailer transporter combination. The bill defines "towaway trailer transporter combination" as a combination of vehicles consisting of a trailer transporter towing unit and two trailers or semitrailers: with a total weight not exceeding 26,000 pounds; and which carry no property and constitute inventory property of a manufacturer, distributor or dealer of such trailers or semitrailers.