DOD INSTRUCTION 4151.24
DEPOT SOURCE OF REPAIR (DSOR) DETERMINATION PROCESS
Originating Component: Office of the Under Secretary of Defense for Acquisition and Sustainment
Effective: October 13, 2017
Change 2 Effective: May 28, 2019
Releasability: Cleared for public release. Available on the Directives Division Website at
https://www.esd.whs.mil/DD/.
Approved by: Ellen M. Lord, Under Secretary of Defense for Acquisition, Technology,
and Logistics
Change 2 (Administrative)
Approved by: Karen Saunders, Chief of Staff
Purpose: In accordance with the authority in DoD Directive 5134.01, and the July 13, 2018 Deputy
Secretary of Defense Memorandum, this issuance:
Establishes policy for determining DSOR assignments for weapon systems and items of military
equipment that require depot-level maintenance, as defined by Section 2460 of Title 10, United States
Code (U.S.C.), regardless of the source of funding or location (e.g., organic, commercial, or any
combination of organic and commercial).
Assigns responsibilities and prescribes procedures that interface with the acquisition cycle to
establish management control of the DSOR determination process; determines the optimum depot-level
maintenance support considering organic, commercial, or a combination of organic and commercial
sources of repair; and establishes organic depot-level maintenance capabilities as early as appropriate in
the weapon system life cycle.
Directs inter-DoD Component reviews of depot-level maintenance requirements against all DoD
capabilities to maximize the use of existing capabilities, efficiently apply resources, prevent unnecessary
duplication of capabilities, and consider DoD strategic interests.
Employs an iterative framework that allows incremental planning for and investment in organic
depot-level maintenance capabilities as the weapon system configuration stabilizes and matures and
sustainment demands evolve.
