1、Department of Defense INSTRUCTION NUMBER 4515.16 August 19,2013 Incorporating Change 1,Effective April 28,2020 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)Ass
2、emblies 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 G
3、SA 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 Cha
4、irman 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 Co
