This subpart prescribes policies and procedures for the use by contractors of interagency fleet management system (IFMS) vehicles and related services. In this subpart, the terms contractors and contracts include subcontractors and subcontracts (see 45.102). [48 FR 42476, Sept. 19, 1983, as amended at 54 FR 29282, July 11, 1989; 55 FR 52797, Dec. 21, 1990; 72 FR 27389, May 15, 2007]