A bill to prohibit the furnishing of capital assistance under the Urban Mass Transportation Act of 1964 to recipients who accept subsidized articles or materials.

Amends the Urban Mass Transportation Act of 1964 to prohibit Federal assistance for purchasers of capital equipment for mass rapid transportation subsidized in violation of the General Agreement on Tariffs and Trade. Declares that a violation shall be presumed to exist if certain determinations are made pursuant to the Export-Import Bank Act Amendments of 1978 (especially with regard to foreign noncompetitive financing), the Trade Act of 1974 or the Tariff Act of 1930.

Requires the Secretary to notify a recipient of the intent to withhold assistance and provide it with the opportunity to cure such violation.