To amend title 23, United States Code, to require States to extend parking privileges to motor vehicles designated under the laws of other States for transporting certain individuals with disabilities.

Requires each State to extend the parking privileges it grants to motor vehicles designated for transporting an individual with a disability that limits or impairs such individual's ability to walk to such vehicles from other States.

Directs the Secretary of Transportation to withhold specified funds for noncompliance. Makes withheld funds available for other projects, subject to specified requirements.