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
- Licensing nuclear installations
- ONR-LNI-GD-001 - Licensing and regulation of smaller licensee organisations with lower hazard installations
- NISCI - A Practical Guide for Enhancing Safety Culture Using the Nuclear Industry Safety Culture Inventory
- ONR-RD-REF-001 - An introduction to ONR’s technical assessment and inspection guides
- ONR-RD-REF-002 - List of regulatory acronyms, abbreviations and initialisms
- TD-HOC-GD-002 - Methodology for undertaking leadership and management for safety (LMfS) reviews
- ONR-GDA-GD-010 - New nuclear power plants: Early engagement - Joint regulatory guidance - Preliminary design review guide
- TD-HOC-GD-003 - Safety culture: Definition and model
- TD-HOC-GD-001 - Methods for assessing culture and diagnosing organisational problems
- ONR-RD-POL-002 - Risk informed and targeted engagements (RITE) policy
- ONR-GEN-GD-013 - Guidance on the assignment of dutyholder attention levels
- ONR-GDA-GD-009 - Early regulatory engagement for new nuclear projects
- CNSS-SEC-GD-001 - Nuclear transport security guidance for Class B approved carriers
- ONR-WB-PROC-001 - Whistleblowing: Process for handling protected disclosures
- ONR-WB-IN-001 - Whistleblowing: How to make a disclosure to ONR (External)
- Principles for flood and coastal erosion risk management
- CNSS-SEC-GD-002 - Nuclear Industries Security Regulations 2003 (NISR): Guidance for Inspectors
- A guide to enabling regulation
- Licence condition handbook
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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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NS-INSP-GD-030 - LC30 - Periodic shutdown
Issue 6.2; Review date: December 2027
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NS-INSP-GD-029 - LC29 - Duty to carry out tests, inspections and examinations
Issue 6.1; Review date: January 2031
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NS-INSP-GD-024 - LC24 - Operating Instructions
Issue 7.1; Review date: October 2027
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NS-INSP-GD-022 - LC22 - Modification or experiment on existing plant
Issue 7.1; Review date: October 2027
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