A bill to amend title 23 of the United States Code, the Surface Transportation Assistance Act of 1978, and for other purposes.

[AI summary unavailable — showing source text] Authorizes the Secretary of Transportation to continue to designate certain highways on the Federal-aid primary system as mileage on part of the Interstate Highway System. Stipulates that, in the event that approval of a route on the Interstate System was withdrawn before November 6, 1978, the State involved shall not be required to refund to the Highway Trust Fund any sums paid to the State for intangible costs. Stipulates that in the case of interstate projects which are withdrawn on or after such date the State shall not be required to reimburse such Fund for the costs of construction items, materials, or rights-of-way if: (1) such items, materials, and rights-of-way were acquired before November 6, 1978; (2) by the withdrawal of approval date the Secretary of Transportation has not approved the project's environmental impact statement; and (3) such items, materials, or rights-of-way will be applied to an eligible transportation project, to a public conservation or recreation purpose, or to any other public purpose determined by the Secretary to be in the public interest under specified conditions. Includes as an eligible cost of construction any interest earned and payable on S…