Department of Defense
INSTRUCTION
NUMBER 5154.31, Volume 3
October 16, 2015
USD(P&R)
SUBJECT: Commercial Travel Management: Defense Travel System (DTS)
References: See Enclosure 1
1. PURPOSE
a. Instruction. This instruction is composed of several volumes, each containing its own
purpose. The purpose of the overall instruction, in accordance with the authority in DoD
Directive 5124.02 (Reference (a)), is to establish and implement policy, assign responsibilities,
and provide procedures regarding the commercial travel program within the DoD.
b. Volume. This volume:
(1) Establishes policy, assigns responsibilities, and provides procedures for the
functional management of the DTS.
(2) In accordance with the authority in Reference (a):
(a) Renames and reissues Chapter 2 of Volume 9, DoD 7000.14-R, “DoD Financial
Management Regulation” (Reference (b)) as the DTS Regulations (Reference (c)).
(b) Incorporates and cancels an Under Secretary of Defense for Personnel and
Readiness memorandum (Reference (d)).
2. APPLICABILITY. This volume applies to OSD, the Military Departments, the Office of the
Chairman of the Joint Chiefs of Staff and the Joint Staff, the Combatant Commands, the Office
of the Inspector General of the Department of Defense, the Defense Agencies, the DoD Field
Activities, and all other organizational entities within the DoD (referred to collectively in this
volume as the “DoD Components”).
