FAR


213.306  SF 44, Purchase Order-Invoice-Voucher.

(a)(1)  The micro-purchase limitation applies to all purchases, except that purchases not exceeding the simplified acquisition threshold may be made for-

(A)  Aviation fuel and oil. The Aviation Into-plane Reimbursement (AIR) card may be used instead of an SF 44 for aviation fuel and oil (see http://www.desc.dla.mil);

(B)  Overseas transactions by contracting officers in support of a contingency operation as defined in 10 U.S.C. 101(a)(13) or a humanitarian or peacekeeping operation as defined in 10 U.S.C. 2302(8); and

(C)  Transactions in support of intelligence and other specialized activities addressed by Part 2.7 of Executive Order 12333.