§ 411. Travel and transportation allowances: administrative provisions

(a) For the administration of sections 404 (a), (b), and (d)–(f), 404a, 405, 405a, 406(a)–(f), 407, 409, and 410 of this title, the Secretaries concerned shall prescribe regulations that are, as far as practicable, uniform for all of the uniformed services.
(b) In establishing the rates and kinds of allowances authorized by the sections of this title designated by subsection (a), the Secretaries concerned shall—
(1) consider the average cost of common carrier transportation when prescribing a monetary allowance in place of transportation;
(2) consider the current economic data on the cost of subsistence, including lodging and other necessary incidental expenses related thereto, when prescribing per diem rates and designating areas as high cost areas; and
(3) consider the average cost of transportation and current economic data on the cost of subsistence, including lodging and other necessary incidental expenses relating thereto, when prescribing mileage allowances.
(c) The Secretaries concerned shall determine what constitutes a travel status for the purposes of the sections of this title designated by subsection (a).
(d) The Secretary concerned shall define the term “permanent station” for the purposes of the sections of this title designated by subsection (a). The definition shall include a shore station or the home yard or home port of a vessel to which a member of a uniformed service who is entitled to basic pay may be ordered. An authorized change in the home yard or home port of such a vessel is a change of permanent station.