A bill to amend title 23, United States Code, relating to the carriage of certain materials on Federal-aid highways.

Declares that the Secretary of Transportation shall not approve a Federal-aid highway project of any State which he determines does not have effective controls on the use of the Federal-aid system by motor vehicle, hauling dirt, sand, gravel and trash.

Defines "effective control" as requiring appropriate covering of hauled materials to prevent escape while on such highway. Excludes publicly owned or controlled vehicles while such vehicles are on a portion of a highway which is being serviced or repaired. (Adds 23 U.S.C. 156)