Yes, when authorized to travel by ship you must use a U.S. flag ship when one is available unless the necessity of the mission requires the use of a foreign ship. (See 46 U.S.C. 55302 ).
41 C.F.R. §301-10.180
Yes, when authorized to travel by ship you must use a U.S. flag ship when one is available unless the necessity of the mission requires the use of a foreign ship. (See 46 U.S.C. 55302 ).
41 C.F.R. §301-10.180