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Product Support Strategy

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Reference Source: DODI 5000.85 Section 3D.3


The Product Support Strategy (PSS) satisfies the statutory requirement of Section 4324 of Title 10, U.S.C., and the regulatory requirement in Paragraph 3D.2.b.(1)(c) of this appendix.  PMs for all programs are responsible for developing and maintaining a PSS to document the support package, beginning at the Development RFP Release Decision Point and throughout the program life cycle.  The PSS outlines the execution of the support package and will describe sustainment requirements in system design and the technical, business, and management activities to develop, implement, and deliver a support package that achieves effective and affordable operational materiel readiness outcomes.  The acquisition strategy will also include an overview of the PSS and sustainment-related contracts.


The USD(A&S), or as designated, will approve the PSS for an ACAT ID program, a USD(A&S)-designated priority business system, or a special interest program.


The CAE, or designee, will approve the PSS for an ACAT IB, or below, program; or upon USD(A&S) formal delegation of an ACAT ID program to ACAT IC through an ADM. The PSS will be updated at each milestone and at specified decision points throughout the program life cycle, on a recurring basis, no less than every 5 years, and include all integrated PS elements.  PSS updates requiring CAE approval must reflect the increased maturity of the support package, current risks, and any cost reduction activities.  Additional decision points include planned and then implemented major modifications to the system and when there are changes to the support package including current risks and cost reduction activities.


  • At Milestone A, the PSS will focus on development of sustainment metrics as discussed in Paragraph 3D.4. in this appendix to influence design and the support package, and denote actions that can be taken prior to Milestone B to reduce future O&S costs, including software product support.  Planning will use factors and assumptions consistent with those used in the AoA and affordability analysis, or justify any deviation from those factors and assumptions.
  • At the Development RFP Release Decision Point and Milestone B, the PSS will focus on finalizing the sustainment metrics, integrating sustainment considerations with design and risk management activities, and refining the execution plan for the design, acquisition, fielding, and competition of sustainment activities.
  • At Milestone C, the PSS will focus on ensuring operational supportability and verifying performance.
  • At the FRP decision or FD decision, the PSS will focus on how sustainment performance is measured, managed, assessed, and reported; and the actions to adjust the support package to ensure continued competition and cost control while meeting warfighter mission requirements.
  • After IOC, the PSS is the principle document governing the system’s sustainment.  Programs will update the plan whenever there are major modifications to the system or changes to the support package, or every 5 years, whichever occurs first, supported by appropriate analyses; sustainment metrics data; sustainment costs; system components or configuration, both hardware and software; environmental requirements; and disposal plans or costs.


The PSS will include the annexes outlined in this paragraph:



  • The PM will attach relevant assumptions, constraints, and analyses used to develop the support package in accordance with Paragraph 3D.2.b.(1)(b) of this appendix.
  • DLA will participate in supply support-related PS BCAs by developing and providing data for ACAT I, II, and III programs.
  • PSMs will revalidate analyses based on changes to the assumptions, constraints, and operating environment, or every 5 years, whichever occurs first.  Level of repair analysis is a key PS analysis required to develop a best value support package.
  • The outputs of an economic level of repair analysis and sensitivity analysis results in a least cost maintenance decision alternative.  This data can be used to then evaluate risk sensitivity analysis to conduct trade analysis to develop a BCA with a recommended best value support package, not necessarily the least cost alternative.


Core Logistics Analysis

The requirement for core logistics capability and the workload to sustain those capabilities are defined in Section 2464 of Title 10, U.S.C.

  • The process to define the numerical magnitude of the workload is documented in DoDI 4151.20.  By the entry milestone, the DoD Component will document its determination of applicability of core depot-level maintenance and repair capability requirements in the PSS pursuant to Section 2366a of Title 10, U.S.C.  For Milestone B, the PM will attach the program’s estimated requirements for maintenance, repair and associated logistics capabilities and workloads to the PSS, pursuant to Section 2366b of Title 10, U.S.C.  Pursuant to Section 2464 of Title 10, U.S.C., the program’s maintenance planning will ensure that core depot-level maintenance and repair capabilities and capacity for a system’s hardware and software are established not later than 4 years after IOC.  The PM will ensure that a depot source of repair designation is made not later than 90 days after the critical design review.  Before entering into a contract for LRIP, the supportability analysis must include detailed requirements for core depot-level maintenance and repair capabilities, and associated sustaining workloads required to support such requirements.
  • Program plans will include the use of DLA-operated storage and distribution facilities where collocated with the DoD Component’s selection of organic depot maintenance as identified in Paragraph 3D.2.c.(2).


Replaced System Sustainment Plan (RSSP)

  • Pursuant to Section 2437 of Title 10, U.S.C., and in accordance with DoDI 4160.28, Volumes 1-4 of DoD Manual 4160.21, and DoD Manual 4160.28, the RSSP will be included in the PSS by Milestone B and updated appropriately throughout the life cycle when the PSS is reviewed and whenever there are significant schedule changes to the replacement system.  The replacement system PM will coordinate with the legacy system PM when developing and updating the RSSP.
  • The DoD Component will ensure that the legacy system RSSP is included in the replaced system’s PSS.  The RSSP’s purpose is to mitigate risk and gaps between the disposal of a legacy system and the fielding of a replacement system in accordance with the online Milestone and Phase Information Requirements table at

Preservation and Storage of Unique Tooling Plan

For MDAPs, the plan, as outlined and required by Section 815 of P.L. 110-41, is prepared to support Milestone C.  It must include the review cycle for assessing tool retention across the life of the system.  If an MDA (other than the DAE) determines that preservation and storage of unique tooling is no longer required, a waiver will be submitted to the DAE for notification to Congress.


IP Strategy

IP strategy documentation originates in the acquisition strategy, transitions to the PSS during the O&S phase, and will be updated appropriately during the O&S phase in accordance with the milestone and phase information requirements table online at


Programmatic ESOH Evaluation

This annex will explain how the program is executing the requirements in Paragraphs 3C.3.d.(2) and 3D.2.b.(5)(a) to manage ESOH risks and requirements across the life cycle.  This annex will incorporate a summary of the current hazard tracking data with risk levels, prohibited and restricted hazardous materials usage and initiatives, and National Environmental Policy Act/Executive Order 12114 planning and compliance status, including military construction and installation management requirements.


Software PSS

Beginning with the PSS that supports a Milestone B decision, the PSS must include the program’s software PSS.  It should reflect results of the PDR and the O&S cost risk determined during TMRR.  The software PSS is documented as a section within the body of the PSS or as a separate annex.  It is updated appropriately throughout the program life cycle.


Additional Annexes

PMs will consider including additional annexes or reference other documents in the PSS.  Examples include:

  • System Disposal Plan.  In accordance with DoDI 4160.28, Volumes 1-4 of DoD Manual 4160.21, and DoD Manual 4160.28 the program’s system disposal plan will be included in the PSS before Milestone B and updated appropriately throughout the program life cycle.
  • Facilities Management Plan.  P&D planning should include a facilities management plan that details support for warfighting capability and may include temporary or permanent facilities necessary for operations and support.  During P&D Phase, the acquiring organization provides the warfighter with the needed capability, to include any required training, spares, technical data to include known hazards and accepted mishap risks, computer software, temporary or permanent facilities and/or infrastructure, support equipment, maintenance, or other logistics support necessary for operation.
  • CPC.  Paragraph 3D.2.b.(6)(a) provides details on CPC planning.