We are committed to providing up to date, open and transparent content relating to our current internal instructions and guidance used to carry out our core operational work.
The material presented here is essentially the same information provided to ONR staff, but with some additional explanation. All open material is available on this website. Not all of ONR's internal instructions and guidance are open documents.
Any documents that have passed their review date remain subject to our review processes and the review dates and will be updated in due course.
Should you have any feedback on our guidance, please get in touch.
Miscellaneous/Other guidance
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NS-INSP-GD-070 - Organisational culture guide for inspectors
Issue 3.3; Review date: June 2030
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NS-TAST-GD-001 - Safety cases
Issue: 1; Published: June 2026; Next review: June 2031
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NS-TAST-GD-051 - The purpose, scope and content of safety cases [withdrawn]
This has been superseded by NS-TAST-GD-001 - Safety cases
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NS-TAST-GD-050 - Periodic Safety Reviews (PSRs) [withdrawn]
This has been superseded by NS-TAST-GD-001 - Safety cases
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NS-TAST-GD-035 - The limits and conditions for nuclear safety (Operating Rules)
Issue 7.1; Review date: May 2031
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NS-INSP-GD-033 - LC33 - Disposal of radioactive waste
Issue 7.1; Review date: October 2027
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NS-INSP-GD-032 - LC32 - Accumulation of radioactive waste
Issue 8.1; Review date: October 2027
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