Title 37Pay and Allowances of the Uniformed ServicesRelease 119-73

§405 Travel and transportation allowances: per diem while on duty outside the continental United States

Title 37 › Chapter CHAPTER 7— - ALLOWANCES OTHER THAN TRAVEL AND TRANSPORTATION ALLOWANCES › § 405

Last updated Apr 6, 2026|Official source

Summary

The Secretary in charge may pay a per diem to a service member who is on duty outside the continental United States. The payment can be made whether or not the member is traveling and can be given in advance, even if normal pay limits would otherwise apply. When setting the per diem, the Secretary must look at cost-of-living factors for the member and their dependents (for example, housing, meals, and other necessary expenses), but dependents are not counted when the member is in travel status. Housing costs or housing allowances can be left out when setting a station cost-of-living allowance. The Secretary can also repay unusual or extra expenses tied to the duty location or the location of dependents if those costs are bigger or different from what members normally face inside the continental United States and are not already covered by the per diem. If a member works inside the continental United States but their dependents live outside it, the Secretary may base per diem on where the dependents live and may repay unusual expenses for those dependents when it is in the best interest of the member, the dependents, and the United States.

Full Legal Text

Title 37, §405

Pay and Allowances of the Uniformed Services — Source: USLM XML via OLRC

(a)Without regard to the monetary limitation of this title, the Secretary concerned may pay a per diem to a member of the uniformed services who is on duty outside of the continental United States, whether or not the member is in a travel status. The Secretary may pay the per diem in advance of the accrual of the per diem.
(b)In determining the per diem to be paid under this section, the Secretary concerned shall consider all elements of the cost of living to members of the uniformed services under the Secretary’s jurisdiction and their dependents, including the cost of quarters, subsistence, and other necessary incidental expenses. However, dependents may not be considered in determining the per diem allowance for a member in a travel status.
(c)Housing cost and allowance may be disregarded in prescribing a station cost of living allowance under this section.
(d)(1)The Secretary concerned may reimburse a member of the uniformed services on duty as described in subsection (a) or (e) for an unusual or extraordinary expense incurred by the member incident to such duty that—
(A)is directly related to the conditions or location of the duty or the location of the member’s dependents;
(B)is of a nature or a magnitude not normally incurred by members of the uniformed services on duty inside the continental United States; and
(C)is not included in the per diem determined under subsection (b) as payable to the member under subsection (a) or (e).
(2)Any reimbursement provided to a member under paragraph (1) is in addition to a per diem payable to that member under subsection (a) or (e).
(e)In the case of a member assigned to duty inside the continental United States whose dependents continue to reside outside the continental United States, the Secretary concerned may pay the member a per diem under this section based on the location of the dependents and provide reimbursement under subsection (d) for an unusual or extraordinary expense incurred by the dependents if the Secretary determines that such payment or reimbursement is in the best interest of the member or the member’s dependents and in the best interest of the United States.

Legislative History

Notes & Related Subsidiaries

Historical and Revision Notes

Revised sectionSource (U.S. Code)Source (Statutes at Large) 40537:253(b).Oct. 12, 1949, ch. 681, § 303(b), 63 Stat. 814. The words “Secretaries concerned” are substituted for the words “Secretaries of the uniformed services” to conform to other subsections of the source statute. The words “outside the United States, or in Hawaii or Alaska” are substituted for the words “outside the continental United States or in Alaska” to conform to the definition of United States in section 101(1) of this revised title and to retain the coverage of the source statute.

Editorial Notes

Prior Provisions

A prior section 405 was renumbered section 475 of this title prior to being renumbered again as this section.

Amendments

2021—Pub. L. 116–283, § 604(a)(1), renumbered section 475 of this title as this section. Subsec. (f). Pub. L. 116–283, § 604(a)(2), struck out subsec. (f). Text read as follows: “During and after the travel authorities expiration date, no per diem may be paid under this section for any period.” 2011—Pub. L. 112–81, § 631(d)(2), renumbered section 405 of this title as section 475. Subsec. (f). Pub. L. 112–81, § 631(e)(4), added subsec. (f). 2006—Subsec. (d). Pub. L. 109–163, § 612(b)(1), substituted “Unusual or Extraordinary” for “Nonrecurring” in heading. Subsec. (d)(1). Pub. L. 109–163, § 612(b)(1), (3)(A), in introductory provisions, inserted “or (e)” after “subsection (a)” and substituted “an unusual or extraordinary” for “a nonrecurring”. Subsec. (d)(1)(A). Pub. L. 109–163, § 612(b)(3)(B), inserted “or the location of the member’s dependents” before semicolon. Subsec. (d)(1)(C), (2). Pub. L. 109–163, § 612(b)(2), inserted “or (e)” after “subsection (a)”. Subsec. (e). Pub. L. 109–163, § 612(a), added subsec. (e). 2004—Pub. L. 108–375, § 605(b)(2), amended section catchline generally, substituting “continental United States” for “United States or in Hawaii or Alaska”. Subsec. (a). Pub. L. 108–375, § 605(b)(1), substituted “outside of the continental United States” for “outside of the United States or in Hawaii or Alaska”. Subsec. (d). Pub. L. 108–375, § 605(a), added subsec. (d). 2000—Pub. L. 106–398 amended section generally. Prior to amendment, section authorized payment of a per diem to members of the uniformed services on duty outside of the United States or in Hawaii or Alaska and specified what elements were to be considered in determining the per diem allowance. 1998—Subsec. (c). Pub. L. 105–261 struck out subsec. (c) which authorized the Secretary concerned to make a lump-sum payment for nonrecurring expenses to certain members of the uniformed services authorized to receive per diem allowances under subsec. (a). 1997—Subsecs. (b) to (d). Pub. L. 105–85 redesignated subsecs. (c) and (d) as (b) and (c), respectively, and struck out former subsec. (b) which read as follows: “A station housing allowance may be prescribed under this section for a member who is on duty outside of the United States without regard to costs other than housing costs and may consist of the difference between basic allowance for quarters and applicable housing cost. A station housing allowance may not be prescribed under this section for a member who is on duty in Hawaii or Alaska. A station housing allowance prescribed under this section may be paid in advance.” 1993—Subsec. (d). Pub. L. 103–160 amended subsec. (d) generally. Prior to amendment, subsec. (d) read as follows: “In the case of a member of the uniformed services authorized to receive a per diem allowance under subsection (a), the Secretary concerned may make a lump-sum payment for nonrecurring expenses incurred by the member in occupying private housing outside of the United States. Expenses for which payments are made under this subsection may not be considered for purposes of determining the per diem allowance of the member under subsection (a).” 1989—Subsec. (d). Pub. L. 101–189 added subsec. (d). 1985—Pub. L. 99–145 inserted “the” after “outside” in section catchline. 1984—Subsec. (a). Pub. L. 98–525, § 602(e)(1), designated first two sentences of existing section as subsec. (a). Subsec. (b). Pub. L. 98–525, § 602(e)(2), (3), designated third and fourth sentences of existing section as subsec. (b), in such third sentence as so designated inserted “for a member who is on duty outside of the United States” after “under this section”, and inserted after such third sentence: “A station housing allowance may not be prescribed under this section for a member who is on duty in Hawaii or Alaska.” Subsec. (c). Pub. L. 98–525, § 602(e)(4), designated last sentence of existing section as subsec. (c). 1979—Pub. L. 96–107 inserted provisions relating to advance payment of station housing allowances. 1970—Pub. L. 91–486 inserted provision authorizing a station housing allowance. 1966—Pub. L. 89–718 substituted “the” for “a” after “including”.

Statutory Notes and Related Subsidiaries

Effective Date

of 1997 AmendmentAmendment by Pub. L. 105–85 effective Jan. 1, 1998, see section 603(e) of Pub. L. 105–85, set out as a note under section 5561 of Title 5, Government Organization and Employees.

Effective Date

of 1993 Amendment Pub. L. 103–160, div. A, title VI, § 622(b), Nov. 30, 1993, 107 Stat. 1683, as amended by Pub. L. 112–81, div. A, title VI, § 631(f)(4)(B), Dec. 31, 2011, 125 Stat. 1465; Pub. L. 112–239, div. A, title X, § 1076(a)(9), Jan. 2, 2013, 126 Stat. 1948, provided that: “The amendment made by subsection (a) [amending this section] shall apply with respect to nonrecurring expenses and currency fluctuation gains described in [former] section 475(d) of title 37, United States Code, that are incurred by members of the uniformed services on or after October 1, 1993.”

Effective Date

of 1989 Amendment Pub. L. 101–189, div. A, title VI, § 622(b), Nov. 29, 1989, 103 Stat. 1447, provided that: “The amendment made by subsection (a) [amending this section] shall apply with respect to expenses incurred after August 31, 1990.”

Effective Date

of 1984 AmendmentAmendment by Pub. L. 98–525 effective Jan. 1, 1985, with exceptions, see section 602(f) of Pub. L. 98–525, as amended, set out as a note under section 403 of this title.

Effective Date

of 1979 Amendment Pub. L. 96–107, title VIII, § 807(b), Nov. 9, 1979, 93 Stat. 814, provided that: “The amendment made by subsection (a) [amending this section] shall take effect on October 1, 1979.”

Reference

Citations & Metadata

Citation

37 U.S.C. § 405

Title 37Pay and Allowances of the Uniformed Services

Last Updated

Apr 6, 2026

Release point: 119-73