Interagency acquisition means a procedure by which an agency needing supplies or services (the requesting agency) obtains them from another agency (the servicing agency), by an assisted acquisition or a direct acquisition. The term includes -
(1) Acquisitions under the Economy Act (31 U.S.C. 1535); and
(2) Non-Economy Act acquisitions completed under other statutory authorities (e.g., General Services Administration Federal Supply Schedules in subpart 8.4 and Governmentwide acquisition contracts (GWACs)).