42 U.S.C. § 4151 — “Building” defined

In this chapter, “building” means a building or facility, except (A) a privately owned residential structure that the Government does not lease for subsidized housing, and (B) a building or facility on a military installation designed and constructed mainly for able-bodied military personnel. For a building or facility not excluded by (A) or (B), its intended use must either require that it be accessible to the public or may result in the employment or residence there of physically handicapped people. The building or facility must also be: (1) constructed or altered by or for the United States; (2) leased in whole or in part by the United States after August 12, 1968; (3) financed in whole or in part by a United States grant or loan after August 12, 1968, if it is subject to design, construction, or alteration standards issued under the law authorizing that grant or loan; or (4) constructed under the National Capital Transportation Act of 1960, the National Capital Transportation Act of 1965, or title III of the Washington Metropolitan Area Transit Regulation Compact. This section does not define “physically handicapped.”