Intergovernmental Revenue Act of 1969 and related legislation : hearings before the Subcommittee on Intergovernmental Relations of the Committee on Government Operations, United States Senate, Ninety-first Congress on S. 2483, to establish a system of general support grants to state and local governments ; to allow partial federal income tax credit for state and local income tax payments ; to authorize federal collection of state income taxes ; to enlarge the federal estate tax credit for state death tax payments ; and to permit states or local taxing authorities to tax property located in federal areas and S. 2048, to permit states or other duly constituted taxing authorities to subject persons to liability for payment of property taxes on property located in federal areas within such states under specified conditions, September 22, 24, 25; October 6, 7, 8, 1969; and February 19, 1970.