令和8年度～令和10年度「維持管理／無人機雷排除システム（UMDS）用ソフトウェア等」: Japan procurement notice

Development and reported outcome

On March 30, 2026, JMSDF Supply Headquarters opened a procurement for maintenance, configuration management, technical investigation, software correction, and technical changes for software used by the Unmanned Mine Disposal System (UMDS). The procurement is a genuine mine-countermeasure sustainment requirement, but the public notice does not explicitly identify OZZ-5 or another underwater-vehicle subsystem. The row is therefore retained under the no-removal rule with an explicit UUV-boundary caveat rather than being classified as a confirmed autonomous UUV development.[S1]

Program, platform and stakeholders

Programme or contract: 令和8年度～令和10年度「維持管理／無人機雷排除システム（UMDS）用ソフトウェア等」. Platform or product: UMDS software sustainment supporting the OZZ-5 AUV within the mine-disposal system. Platform classification: Autonomous Operated Vehicle. Recorded supplier, developer or relevant organization: JMSDF Supply Headquarters (reported headquarters/country: Japan). Recorded customer, operator or intended user: JMSDF MCM system community (reported headquarters/country: Japan).[S1]

Mission and technical scope

The following are classifications recorded in the source master, not additional claims of operational deployment: Mission/use-case classification: Mine Countermeasures; Software Maintenance / In-Service Support.

Contract, value and shipment signals

Original-currency label: JPY. Recorded quantity, delivery, demonstration or volume signal: Service package. Delivery schedule, procurement window or milestone status: Status as of Aug. 31, 2026: Closed; bid/application deadline: Apr. 20, 2026. Recorded contractual end: Apr. 20, 2026.[S1]

Source verification and interpretation limits

UXV Searcher master source-coverage note: The JMSDF procurement is for software sustainment of the broader Unmanned Mine Disposal System (UMDS). Official Japanese defense material identifies the OZZ-5 AUV as the UMDS mine-detection element; this row is therefore retained only as enabling sustainment directly tied to that named UUV and not as a new vehicle procurement.

Interpretation boundary: The tender, notice or request stage does not by itself prove a signed contract, selected supplier, or physical delivery.[S1]

UXV Searcher analysis — what the development changes

UXV Searcher interpretation — procurement requirement / tender: The Japan UUV record for 令和8年度～令和10年度「維持管理／無人機雷排除システム（UMDS）用ソフトウェア等」 is best treated as a procurement pipeline signal. A published requirement can indicate addressable demand, but it is not an award, supplier revenue, shipment, or fleet increase.

Traceability for buyers: The dataset associates JMSDF Supply Headquarters with JMSDF MCM system community for UMDS software sustainment supporting the OZZ-5 AUV within the mine-disposal system. This supports stakeholder mapping; supply-chain tier, exclusivity and signed-customer relationships need the underlying source before firm classification.

Client-use interpretation: For intelligence users tracking Mine Countermeasures; Software Maintenance / In-Service Support, the relevant next proof points are mine-countermeasures requirements, autonomy integration and acceptance milestones. Track the award notice, signed value and accepted delivery quantities before upgrading this demand signal.[S1]

Quantitative evidence, calculations and limits

Quantity/scope signal: Service package. Counting rule: Requested scope; not a delivery or award total. Delivery/timing evidence: Status as of Aug. 31, 2026: Closed; bid/application deadline: Apr. 20, 2026. Scheduling language is not independently proof of completion or acceptance.

Quantified requirements are potential procurement scope, not realised hardware orders or sales.[S1]