by state transportation agencies from Conrail following the initial transfer. Congress approved the final plan on November 9, 1975. President Gerald Ford signed the Railroad Revitalization and Regulatory Reform Act of 1976 (the "4R Act") on February 6 of that year, which included this Final System Plan, into law. USRA published a supplementary report in 1986 which provides a complete overview of the disposition of the affected rail lines and related properties. Dissolution Congress abolished the USRA effective January 1, 1987. See also History of rail transport in the United States References Conrail United States railroad regulation 1974 establishments in the United States 1987 disestablishments in the United States