Section 47.507 - Contract clauses(a)(1) Insert the clause at 52.247-64, Preference for Privately Owned U.S.-Flag Commercial Vessels, in solicitations and contracts that may involve ocean transportation of supplies subject to the Cargo Preference Act of 1954. (For application of the Cargo Preference Act of 1954, see 47.502(a)(3), 47.503(a), and 47.504.)(2) If an applicable statute requires, or if it has been determined under agency procedures, that the supplies to be furnished under the contracts must be transported exclusively in privately owned U.S.-flag commercial vessels (see 47.502(a)(1) and 47.503(b)), use the clause with its Alternate I.(3) Except for contracts or agreements for ocean transportation services or construction contracts, use the clause with its Alternate II if any of the supplies to be transported are commercial products that are shipped in direct support of U.S. military- (i) Contingency operations;(iii) Forces deployed in connection with United Nations or North Atlantic Treaty Organization humanitarian or peacekeeping operations.(b) The contracting officer may insert in solicitations and contracts, under agency procedures, additional appropriate clauses concerning the vessels to be used.68 FR 13203, Mar. 18, 2003, as amended at 86 FR 61031, Nov. 4, 2021