Multimodal Transportation Improvement Act of 1981

[AI summary unavailable — showing source text] Multimodal Transportation Improvement Act of 1981 - Sets forth the findings of Congress concerning funding of basic improvement and maintenance requirements of the multimodal transportation system in the United States. Amends the Highway Revenue Act of 1956 and the Airport and Airway Revenue Act of 1970 to appropriate specified sums attributable to the collection of customs duties to the Highway Trust Fund and the Airport and Airway Trust Fund. Establishes in the Treasury the: (1) Navigable Waterways Trust Fund for navigation projects on U.S. navigable waters; and (2) Railroad Trust Fund for local rail service assistance. Appropriates to the Trust Funds certain amounts attributable to the collection of customs duties.…