Guidance: Design Approved Organization Scheme (DAOS)

Why It Matters

DAOS is the gate‑keeper for MOD procurement, so compliance directly determines market access and revenue for aerospace and defence suppliers. It also standardises safety and security standards across UK‑controlled design activities.

Key Takeaways

• DAOS certification required for MOD aircraft design contracts
• On‑site audits performed by DAOS or CAA International
• Form 80 initiates assessment; Form 82 manages changes
• Charges apply for CAAi surveillance audits
• Version 4.2 template released June 2026

Pulse Analysis

The Design Approved Organization Scheme (DAOS) is the cornerstone of the UK Ministry of Defence’s effort to ensure that only competent firms design critical aircraft systems, armament and mission software. Under Regulatory Article 1005, any contractor seeking MOD contracts must first obtain DAOS approval, a process that begins with a sponsor—typically a DE&S Defence Team—submitting Form 80 on the organisation’s behalf. This rigorous vetting aligns with the broader 5000 series airworthiness regulations, creating a unified compliance framework that spans everything from airframe design to ITAR‑sensitive weapons technology.

Once certified, organisations are not left unchecked. The DAOS branch, in partnership with the Civil Aviation Authority International (CAAi), conducts periodic on‑site surveillance audits that are risk‑based and can incur fees. These audits verify that the approved design processes remain robust, especially when firms submit Form 82 to report changes that could affect their certification status. Recent updates, such as the June 2026 release of version 4.2 of the Design Organisation Exposition template, reflect the MOD’s commitment to keeping the scheme current with evolving technical and security requirements.

For defence and aerospace suppliers, DAOS compliance is more than a bureaucratic hurdle—it is a market differentiator. Holding a DAOS certificate unlocks access to high‑value MOD contracts and signals to international partners that the firm meets stringent UK safety and security standards. As the defence sector increasingly integrates complex software and cross‑border technologies, the scheme’s emphasis on continuous oversight and transparent change management will likely become a benchmark for other nations seeking to safeguard their critical design capabilities.