A bill to establish a ten-year moratorium on the construction, alteration, acquisition, or leasing of certain buildings for use by Federal agencies in the Greater Washington area.

Prohibits Federal agencies from building, altering, acquiring, or leasing any building for office or storage space within a 50-mile radius of the Capitol Building between October 1, 1979, and September 30, 1989.

Makes specified exemptions from the provisions of this Act including: (1) construction, alteration, or acquisition of a building if the cost of such transaction is less than $500,000; (2) leasing a building at an annual rate of less than $25,000; (3) leasing of a building to the extent that the total aggregate space being leased in the building does not exceed that being leased on October 1, 1979; (4) buildings to be used for national security purposes; and (5) construction or alteration of a building pursuant to a contract entered into before October 1, 1979.