48 CFR §47.504

1. (a)Shipments aboard vessels as required or authorized by law or treaty.
2. (b)Ocean transportation between foreign countries of supplies purchased with foreign currencies made available, or derived from funds that are made available, under the Foreign Assistance Act of 1961 (22 U.S.C. 2353).
3. (c)Shipments of classified supplies when the classification prohibits the use of non-Government vessels.
4. (d)Subcontracts for the acquisition of commercial products, including commercial components, or commercial services(see 12.504(a)(1) and (a)(11)). This exception does not apply to—
   1. (1)Grants-in-aid shipments, such as agricultural and food-aid shipments;
   2. (2)Shipments covered under 46 U.S.C. Appx 1241-1, such as those generated by Export-Import Bank loans or guarantees;
   3. (3)Subcontracts under—
      1. (i)Government contracts or agreements for ocean transportation services; or
      2. (ii)Construction contracts; or
   4. (4)Shipments of commercial products that are—
      1. (i)Items the contractor is reselling or distributing to the Government without adding value (see FAR 12.501(b)). Generally, the contractor does not add value to the items when it subcontracts items for f.o.b. destination shipment; or
      2. (ii)Shipped in direct support of U.S. military—
         1. (A)Contingency operations;
         2. (B)Exercises; or
         3. (C)Forces deployed in connection with United Nations or North Atlantic Treaty Organization humanitarian or peacekeeping operations.