Office for Nuclear Regulation

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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.

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

Document ID Review date Title
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 3) February 2022 LC 4 - Restrictions on Nuclear Matter on the Site
NS-INSP-GD-005 (Rev 4) February 2022 LC 5 - Consignment of Nuclear Matter
NS-INSP-GD-006 (Rev 3) September 2021 LC 6 - Documents, Records, Authorities and Certificates
NS-INSP-GD-007 (Rev 6) July 2023 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 2) December 2022 LC 10 - Training
NS-INSP-GD-011 (Rev 7) August 2025 LC 11 and REPPIR– Operator’s Emergency Arrangements
NS-INSP-GD-012 (Rev 2) 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 (Rev 5) September 2021 LC 16 - Site Plans, Designs and Specifications
NS-INSP-GD-017 (Rev 6) August 2022 LC 17 - Management Systems
NS-INSP-GD-018 (Rev 6) January 2022 LC 18 - Radiological Protection
NS-INSP-GD-019 (Rev 6) November 2021 LC 19 - Construction or Installation of New Plant
NS-INSP-GD-020 (Rev 6) November 2021 LC 20 - Modification to Design of Plant Under Construction
NS-INSP-GD-021 (Rev 6) November 2021 LC 21 - Commissioning
NS-INSP-GD-022 (Rev 5) January 2022 LC 22 - Modification or experiment on existing plant
NS-INSP-GD-023 (Rev 6) February 2023 LC 23 - Operating Rules
NS-INSP-GD-024 (Rev 6) February 2023 LC 24 - Operating Instructions
NS-INSP-GD-025 (Rev 6) 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 7) 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 6) 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
T/INS/036 - T/INS/036 The guidance previously contained within T/INS/036 is now incorporated within T/AST/048
NS-INSP-GD-051 (Rev 7) August 2022 The Regulation of Conventional Health and Safety on UK Nuclear Sites
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) February 2022 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 (Rev 5) 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 (Rev 1) May 2021 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 (Rev 1) May 2021 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
ONR-RI-GD-003 (Rev 5) August 2023 Management of Regulatory Issues - Guidance
CNS-INSP-GD-1.0 (Rev 0) January 2021 Leadership and Management for Security
CNS-INSP-GD-2.0 (Rev 0) January 2021 Security Organisational Culture
CNS-INSP-GD-4.0 (Rev 0) January 2021 Supply Chain Management
CNS-INSP-GD-5.0 (Rev 0) January 2021 Reliability,Resilience and Sustainability
CNS-INSP-GD-6.0 (Rev 0) January 2021 Physical Protection Systems
CNS-INSP-GD-7.0 (Rev 0) January 2021 Cyber Security and Information Assurance
CNS-INSP-GD-8.0 (Rev 0) January 2021 Workforce Trustworthiness
CNS-INSP-GD-9.0 (Rev 0) January 2021 Policing and Guarding
CNS-INSP-GD-10.0 (Rev 0) January 2021 Emergency Preparedness and Response