The regulations in this part apply to all executive agencies which occupy space in or are prospective occupants of multi-occupant Federal buildings located in the United States. In appropriate circumstances, the centralized services provided pursuant to this part are extended to agencies occupying other Federal buildings in the same geographical area. For purposes of this part, reference to Federal buildings may be deemed to include, when appropriate, leased buildings or specific leased space in a commercial building under the control of GSA.
41 C.F.R. §101-5.101