Office for Nuclear Regulation

Compliance inspection - Technical inspection guides

The purpose of the technical inspection guides is to facilitate a consistent approach to ONR's site Licence Condition compliance inspection by providing guidance to inspectors on what Licencee's arrangements should include to meet the requirements of the Licence Conditions. Although it is not their primary purpose, the technical inspection guides therefore also provide information for Licencees on ONR's expectations of the nature and content of their own arrangements.

Feedback

Should you have any feedback on our guidance, please email contact@onr.gov.uk

NOTE: As part of a recent update to our internal quality control arrangements, we have updated the terminology related our document publication process. Previously, documents were marked with a ‘Revision number’ – denoting the next number in the lifecycle of the document. However, we have recently changed this term to ‘Issue number’ in order to avoid conflicts with our internal document management processes. New or updated documents will be marked with an ‘Issue number’ as opposed to a ‘Revision number’, however, the number sequence will not be effected by this change. Should you require more information relating to this change in terminology, please contact us.

Document ID Review date Title
Nuclear safety
NS-INSP-GD-002 (Rev 2) July 2024 LC 2 - Marking of the Site Boundary
NS-INSP-GD-003 (Rev 1) September 2023 LC 3 - Control of Property Transactions
NS-INSP-GD-004 (Rev 4) February 2022 LC 4 - Restrictions on Nuclear Matter on the Site
NS-INSP-GD-005 (Rev 5) February 2022 LC 5 - Consignment of Nuclear Matter
NS-INSP-GD-006 (Issue 5) August 2026 LC 6 - Documents, Records, Authorities and Certificates
NS-INSP-GD-007 (Issue 6.1) July 2025 LC 7 - Incidents on the Site
NS-INSP-GD-008 (Rev 6) December 2023 LC 8 - Warning Notices
NS-INSP-GD-009 (Rev 6) December 2022 LC 9 - Instructions to Persons on Site
NS-INSP-GD-010 (Rev 3) December 2022 LC 10 - Training
NS-INSP-GD-011 (Issue 7.1) August 2025 LC 11 - On-site Emergency Arrangements
NS-INSP-GD-012 (Rev 3) December 2022 LC 12 - Duly authorised and other suitably qualified and experienced persons
NS-INSP-GD-013 (Rev 6) July 2024 LC 13 - Nuclear Safety Committee
NS-INSP-GD-014 (Rev 5) July 2024 LC 14 - Safety documentation
NS-INSP-GD-015 (Rev 5) July 2024 LC 15 - Periodic review
NS-INSP-GD-016 (Issue 6) September 2026 LC 16 - Site Plans, Designs and Specifications
NS-INSP-GD-017 (Rev 7) August 2022 LC 17 - Management Systems
NS-INSP-GD-018 (Rev 6) January 2022 LC 18 - Radiological Protection
NS-INSP-GD-019 (Rev 7) November 2021 LC 19 - Construction or Installation of New Plant
NS-INSP-GD-020 (Rev 7) November 2021 LC 20 - Modification to Design of Plant Under Construction
NS-INSP-GD-021 (Rev 7) November 2021 LC 21 - Commissioning
NS-INSP-GD-022 (Rev 6) January 2022 LC 22 - Modification or experiment on existing plant
NS-INSP-GD-023 (Rev 6.1) February 2023 LC 23 - Operating Rules
NS-INSP-GD-024 (Rev 6) February 2023 LC 24 - Operating Instructions
NS-INSP-GD-025 (Rev 7) February 2023 LC 25 - Operating Records
NS-INSP-GD-026 (Rev 6) September 2024 LC 26 - Control and Supervision of Operations
NS-INSP-GD-027 (Rev 6) December 2024 LC 27 - Safety Mechanisms, Devices and Circuits
NS-INSP-GD-028 (Rev 8) September 2022 LC 28 - Examination, Inspection Maintenance and Testing (EIMT)
NS-INSP-GD-029 (Rev 5) October 2023 LC 29 - Duty to Carry out Tests, Inspections and Examinations
NS-INSP-GD-030 (Rev 6) June 2024 LC 30 - Periodic Shutdown
NS-INSP-GD-031 - Withdrawn
NS-INSP-GD-032 (Rev 7) April 2024 LC 32 - Accumulation of Radioactive Waste
NS-INSP-GD-033 (Rev 6) April 2024 LC 33 - Disposal of Radioactive Waste
NS-INSP-GD-034 (Rev 6) April 2024 LC 34 - Leakage and Escape of Radioactive Material and Radioactive Waste
NS-INSP-GD-035 (Rev 6) April 2022 LC 35 - Decommissioning
NS-INSP-GD-036 (Issue 1) March 2026 LC36 - Organisational Capability
NS-INSP-GD-051 (Issue 8) August 2022 Dealing with Matters of Evident Concern and Potential Major Concern
NS-INSP-GD-053 (Rev 6) February 2025 Criticality Safety
NS-INSP-GD-054 (Rev 7) April 2022 The Ionising Radiations Regulations 2017
NS-INSP-GD-056 (Rev 5) January 2024 Regulation of GB's Defence Nuclear Programme
NS-INSP-GD-057 - Withdrawn - The guidance contained within this document has now been incorporated within NS-INSP-GD-056
NS-INSP-GD-058 (Rev 4) April 2025 Licensed Site Annual Review Meetings
ONR-INSP-GD-059 (Rev 8) October 2025 Guidance for Inspection Strategy Planning and Reporting
ONR-INSP-GD-064 (Issue 5.1) October 2025 General Inspection Guide
NS-INSP-GD-066 (Rev 4) April 2025 The Carriage of Dangerous Goods and Use of Transportable Pressure Equipment Regulations 2009 - Plan in Writing: Emergency arrangements
NS-INSP-GD-067 (Issue 1.1) May 2023 (Currently under review) Off-Site Emergency Arrangements
NS-INSP-GD-068 (Rev 2) June 2022 The Carriage of Dangerous Goods and use of Transportable Pressure Equipment Regulations 2009 - Radiation and Contamination Monitoring, and Determination
NS-INSP-GD-069 (Issue 1.1) April 2024 Compliance Inspection of Transport Arrangements in the Nuclear Sector
NS-INSP-GD-070 (Rev 2) December 2024 Safety Culture Guide for Inspectors
ONR-INSP-GD-071 (Rev 0) September 2022 Guidance supporting the MoU between HSE and ONR on effective regulation of IRR17 in relation to transport of radioactive material
NS-INSP-GD-072 (Rev 1) June 2024 The Carriage of Dangerous Goods and use of Transportable Pressure Equipment Regulations 2009 – Inspection of Transport Security Requirements
NS-INSP-GD-073 (Issue 1) March 2023 The Regulation of Life Fire Safety Provisions on GB Nuclear Sites
NS-INSP-GD-074 (Issue 1) October 2023 Construction (Design and Management) Regulations
ONR-RI-GD-003 (Rev 5) August 2023 Management of Regulatory Issues - Guidance
Civil nuclear security
CNS-INSP-GD-1.0 (Rev 1) January 2022 Leadership and Management for Security
CNS-INSP-GD-2.0 (Rev 1) January 2022 Security Organisational Culture
CNS-INSP-GD-4.0 (Rev 1) January 2022 Supply Chain Management
CNS-INSP-GD-5.0 (Rev 1) January 2022 Reliability, Resilience and Sustainability
CNS-INSP-GD-6.0 (Rev 1) January 2022 Physical Protection Systems
CNS-INSP-GD-7.0 (Rev 1) January 2022 Cyber Security and Information Assurance
CNS-INSP-GD-8.0 (Rev 1) January 2022 Workforce Trustworthiness
CNS-INSP-GD-9.0 (Rev 1) January 2022 Policing and Guarding
CNS-INSP-GD-10.0 (Rev 2) January 2022 Emergency Preparedness and Response
Safeguards
SG-INSP-GD-001 (Rev 3) January 2023 Safeguards technical inspection guide