(a) The Assistant Secretary of State for Administration is the agency head for the purposes of FAR 1.301. The Assistant Secretary of State for Administration redelegated to the Procurement Executive the authority to prescribe, promulgate, and amend DOS acquisition policies, rules, and regulations.(b) The Department of State Acquisition Regulation (DOSAR) is prescribed under the authority of 22 U.S.C. 2658 and 40 U.S.C. 486(c) .(c) The DOSAR implements and supplements the FAR.59 FR 66751, Dec. 28, 1994, as amended at 64 FR 43620, Aug. 11, 1999; 80 FR 6913 , Feb. 9, 2015