Reset safety case development to eliminate duplication and embed simplicity
Reset safety case development
Reset the approach to safety case development and assessment to eliminate duplication and embed simplicity. This should aim to shorten safety cases overall and return them to their original purpose as documents for use by the dutyholder to support operation.
The defence sector should realign with the Three Lines of Defence (3LoD) model in accordance with HMG's Management of Risk – Principles and Concepts. The first line undertaking the majority of technical review, the second line providing process assurance and targeted assessment of high-risk areas, and the third independent line providing assurance that management arrangements and governance frameworks operate effectively. The regulator should exist external to the 3LoD structure.
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Original target: March 2026
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