A bill to amend title 23 of the United States Code to provide additional exemptions to States from requirements to make refunds to the Highway Trust Fund by reason of a withdrawal of approval of a route or portion thereof on the Interstate System.

Stipulates that upon the withdrawal of approval of any portion of an Interstate Highway, the State involved, subject to the approval of the Secretary of Transportation, shall not be required to refund to the Highway Trust Fund any sums paid to the State for intangible costs. Stipulates that refunds shall not be required if the State applies such funds to an eligible transportation project or to a public conservation or recreation purpose within ten years.