Title 10 requirements
Explore the Title 10 MOSA outline by applicability, acquisition decision, and military department responsibility.
Department of War guidance
Read the September 21, 2026 MOSA memorandum from the Office of the Undersecretary of War for Acquisition & Sustainment (A&S) and download the original document.
Legacy guidance from OUSW R&E on MOSA — the Office of the Under Secretary of War for Research and Engineering’s MOSA resource page includes implementation material published before the September 2026 memorandum. For current acquisition policy, see the A&S memorandum above.
Government resources
- Open Arsenal · U.S. Air Force — open mission systems architectures and standards.
- DEVCOM Ground Vehicle Systems Center · U.S. Army — the Army’s ground vehicle research and engineering center, with work in electronics, architecture, and software integration.
- Autonomous Ground Vehicle Reference Architecture (AGVRA) · U.S. Army DEVCOM — an Army-chartered initiative that publishes reference architecture resources for ground vehicle systems.
- Naval Air Systems Command MOSA · U.S. Navy — NAVAIR’s overview of MOSA and its collection of implementation resources.
- NAVAIR OSMP Implementation Description Guide v1.0 (2025, PDF) — Navy guidance on documenting how a program plans to implement a Modular Open Systems Approach. This guide provides information on how to use the OSMP on contract.
- Defense Standardization Program (DSP) ASSIST · Defense Logistics Agency — DSP ASSIST contains several MOSA-related items, including the Open Systems Management Plan (OSMP) Data Item Description (DID). Search ASSIST for DI-MGMT-82099. You’ll need an ASSIST account to search there. The DID record in DLA Quick Search is public.
- PEO Aviation’s Modular Open Systems Approach · U.S. Army — a June 2024 article on Army aviation’s approach, including its architecture working group and enterprise major system components.
- PEO Aviation MOSA Pocket Guide (2022, PDF) — a two-page quick reference for program teams building a holistic MOSA approach. It connects governance and acquisition planning with digital engineering, architecture, hardware and software, and conformance.
Standards and modeling
The Open Group
- Future Airborne Capability Environment (FACE) standards — publications on software portability and reuse across avionics systems.
- Sensor Open Systems Architecture (SOSA) standards — publications on modular architectures and interfaces for sensor systems.
Object Management Group (OMG)
- Unified Architecture Framework (UAF) — specifications and machine-readable artifacts for enterprise architecture modeling.
- Systems Modeling Language (SysML) — specifications for modeling system requirements, structure, and behavior.
Acquisition training
Warfighting Acquisition University (WarU), formerly Defense Acquisition University, publishes learning material for the acquisition workforce.
- Interfaces, MOSA and Module Level Competition — an October 2026 webinar with MOSA Cadre members on the new policy and its implications for acquisition teams.
- WarU Media MOSA collection — browse additional recordings by topic and date.
For the department’s policy text, see the September 2026 memorandum.
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