Chapter 5Simplification of Nuclear Regulation
R05On Track

Reset safety case development to eliminate duplication and embed simplicity

Reset safety case development

Full Recommendation Text

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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Ownership

Primary Owner

Dutyholders

Co-owners

Regulators

Key Regulators

ONRDNSR
Delivery Timeline
119 days
31 Mar 26

Original target: March 2026

Scope

Sectors

civildefence

Domains

safety caserisk management
Implementation Type
guidanceculture change
Dependencies

Depends On

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