Department of Defense
INSTRUCTION
NUMBER 4515.16
August 19, 2013
USD(P&R)
SUBJECT: Use of General Services Administration (GSA) Contracts for Air Passenger
Transportation Services (GSA Airline City Pair Program) for Attendance at
Inactive Duty Training (IDT) Assemblies
References: See Enclosure 1
1. PURPOSE. In accordance with the authority in DoD Directive (DoDD) 5124.02 (Reference
(a)), this instruction reissues DoD Instruction (DoDI) 4515.16 (Reference (b)) to establish policy,
assign responsibilities, and update the requirements, conditions, and restrictions for use of GSA
Airline City Pair Program for attendance at IDT assemblies.
2. APPLICABILITY. This instruction applies to OSD, the Military Departments (including the
Coast Guard at all times, including when it is a Service in the Department of Homeland Security
by agreement with that Department), 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 instruction as the “DoD Components”).
3. POLICY. It is DoD policy that:
a. Reserve Component Service members of a Military Department and the U. S. Coast Guard
(USCG) will be afforded the opportunity to use the GSA Airline City Pair Program for travel to
attend IDT in accordance with section 12603 of Title 10, United States Code (U.S.C.) (Reference
(c)).
b. The Secretary concerned may reimburse qualified Selected Reserve Service members for
GSA Airline City Pair Program expenses incurred as a result of travel to attend IDT in
accordance with section 452 of Title 37, U.S.C. (Reference (d)).
4. RESPONSIBILITIES. See Enclosure 2.
