BY ORDER OF THE COMMANDER
AIR FORCE MATERIEL COMMAND
AIR FORCE MATERIEL COMMAND
INSTRUCTION 20-105
15 JULY 2022
Logistics
DIMINISHING MANUFACTURING
SOURCES AND MATERIAL
SHORTAGES (DMSMS)
COMPLIANCE WITH THIS PUBLICATION IS MANDATORY
ACCESSIBILITY: Publications and forms are available for downloading or ordering on the e-
Publishing website at www.e-Publishing.af.mil.
RELEASABILITY: There are no releasability restrictions on this publication
OPR: USAF/HQ AFMC/A4/10-EN Certified by: HQ AFMC/A4/10-EN
(Mr. Sean Coghlan)
Supersedes: AFMCI 20-105, 16 November 2017 Pages: 15
The instruction implements Air Force Policy Directive (AFPD) 63-1/20-1, Integrated Life Cycle
Management, Department of Defense Instruction (DoDI) 4140.01, DoD Supply Chain Materiel
Management Policy, Department of Defense Manual (DoDM) 4140.01, Volume 3, DoD Supply
Chain Materiel Management Procedures: Materiel Sourcing, and DoDI 4245.15, Diminishing
Manufacturing Sources and Material Shortages Management. This instruction provides additional
guidance relating to Air Force Materiel Command (AFMC) implementing the DoD and
Department of the Air Force (DAF) policy on obsolescence management for sustainment or
improvements of all weapon systems and end items currently in the AF inventory. It is to be used
by AFMC, associated Program Executive Offices, Supply Chain Management Planning &
Execution (P&E) Wings, Groups, and Squadrons, as well as supporting contractors for weapon
systems no longer in AFMC inventory, which the AF has agreed to provide support for. This
publication is not applicable to the Air Force Reserve Command (AFRC), Air National Guard
(ANG), or United States Space Force (USSF). In addition, Air Force A4/7 has delegated
Diminishing Manufacturing Sources and Materiel Shortages (DMSMS) procedural guidance
development to AFMC in DAFI 23-101, Air Force Materiel Management. This AFMC Instruction
(AFMCI) may not be supplemented at any level. Refer recommended changes and questions
about this publication to the Office of Primary Responsibility (OPR) using the DAF Form 847,
Recommendation for Change of Publication; route DAF Forms 847 from the field through the
appropriate functional chain of command. HQ AFMC/A4/10 is the waiver authority for wing/unit
level requirements in this publication. Submit requests for waivers through the chain of command
to the Publication OPR for consideration. Ensure that all records created as a result of processes
