(1) Members of Congress.
(2) Other officers of the United States traveling on official business.
(3) Secretaries and supplies of the Armed Services Department of the Young Men’s Christian Association.
(4) Officers and employees of the Commonwealth of Puerto Rico on official business.
(5) The families of members of the armed forces, officers and employees of the Department of Defense or the Coast Guard, and persons described in paragraphs (1), (2), and (4).
Structure US Code
Subtitle A— General Military Law
PART IV— SERVICE, SUPPLY, AND PROPERTY
§ 2631. Preference for United States vessels in transporting supplies by sea
§ 2631a. Contingency planning: sealift and related intermodal transportation requirements
§ 2632. Transportation to and from certain places of employment and on military installations
§ 2636. Deductions from amounts due carriers
§ 2637. Transportation in certain areas outside the United States
§ 2638. Transportation of civilian clothing of enlisted members
§ 2639. Transportation to and from school for certain minor dependents
§ 2640. Charter air transportation of members of the armed forces or cargo
§ 2641. Transportation of certain veterans on Department of Defense aeromedical evacuation aircraft
§ 2643. Commissary and exchange services: transportation overseas
§ 2644. Control of transportation systems in time of war
§ 2646. Travel services: procurement for official and unofficial travel under one contract
§ 2648. Persons and supplies: sea, land, and air transportation
§ 2650. Civilian personnel in Alaska
§ 2651. Passengers and merchandise to Guam: sea transport
§ 2652. Prohibition on charge of certain tariffs on aircraft traveling through channel routes