Title 10 › Subtitle A — General Military Law › PART V — ACQUISITION › Subpart F — Major Systems, Major Defense Acquisition Programs, and Weapon Systems Development › CHAPTER 323 — LIFE-CYCLE AND SUSTAINMENT › § 4324
The Secretary of Defense must make sure every covered system has a performance-based life-cycle sustainment plan. That plan must be approved by the service acquisition executive and meet operational readiness and materiel readiness goals under section 118(c) in the most cost-effective way. A product support manager must write, update, and carry out the plan. The plan must include a full product support strategy covering areas like maintenance, supply, training, technical data, facilities, and workforce; a life-cycle cost estimate tied to that strategy (and, for major programs, meeting Milestone A, B, or C approval rules); engineering and design guidance to lower sustainment costs; an intellectual property plan under section 3774 that covers technical data, software, and modular open systems (section 4401); a plan to use public and private sector capabilities, including partnerships; and a transition plan from production to initial fielding that lists needed tools, spares, manuals, training, facilities, funding for fielding locations, and training simulators. When making the plan, the manager must consider affordability, sustainment risks (including contested logistics under section 2926), follow core logistics and depot maintenance rules (sections 2464 and 2466), use commercial best practices and new technology, and support a strong defense industrial base. Definitions: “Milestone decision authority” and “Milestone A approval” are defined in section 4251; “Milestone B approval” and “Milestone C approval” are defined in section 4172; “covered system” means a major defense acquisition program (section 4201), a major subprogram (section 4203), or a rapid fielding/prototyping program under section 3602 expected to reach the cost in section 4201(a)(2); “critical readiness items of supply” are parts or systems that cause mission impairment or hurt materiel readiness; “Integrated Product Support Elements” names 12 support areas such as product support management, design interface, sustaining engineering, maintenance planning, supply support, support equipment, technical data, training, IT support, facilities, packaging/transportation, and manpower; “product support” is the set of support functions to field and sustain readiness; “product support arrangement” is any contract or agreement for sustainment or logistics (including performance-based logistics and contractor logistics support); “product support integrator” is the entity that coordinates public and private support; and “product support provider” is the entity that performs support functions.
Full Legal Text
Armed Forces, Source: USLM XML via OLRC
Legislative History
Reference
Citation
10 U.S.C. § 4324
Title 10, Armed Forces
Last Updated
Sep 23, 2026
Release point: 119-110