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This regulatory report details inspections and safety assessments conducted at Sizewell B between September and December 2024, focusing on reactor maintenance, safety reviews, and regulatory compliance.
Year: 2024
Region / City: Sizewell B
Subject: Nuclear site inspections, regulatory activities
Document Type: Regulatory report
Organization / Institution: Office for Nuclear Regulation
Author: Nominated Site Inspector, Head of Operating Reactors
Target Audience: Members of Sizewell SSG, public
Period of Validity: 1 September – 31 December 2024
Approval Date: January 2025
Modification Date: Not specified
Price: 8 / 10 USD
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ONR site report EDF Energy - Sizewell B
Year: 2025
Region / City: Sizewell
Topic: Nuclear Site Inspection
Document Type: Report
Organization: Office for Nuclear Regulation (ONR)
Author: Nominated Site Inspector
Target Audience: Regulatory bodies, stakeholders in nuclear safety
Period of Validity: 1 April – 30 June 2025
Approval Date: July 2025
Amendment Date: N/A
Approval of Nuclear Safety Committee Terms of Reference for Sizewell C Project, February 2025
Year: 2025
Project: Sizewell C
Report Type: Project Assessment Report
Organization: Office for Nuclear Regulation
Dutyholder / Applicant: Sizewell C Limited
Document ID: ONRW-2019369590-9296
Publication Date: February 2025
Licence Condition: LC 13(2)
Nuclear Site Licence Effective Date: 7 May 2024
NSC Establishment: Preliminary 2017, Shadow 2019
Assessment Period: 2020–2024
Recommendation: Approval of ToR for NSC
EDF Energy – Sizewell B ONR Site Report for period: 1 January – 31 March 2025
Year: 2025
Region / City: Sizewell
Topic: Nuclear Safety Inspections
Document Type: Regulatory Report
Agency / Organization: Office for Nuclear Regulation (ONR)
Author: Nominated Site Inspector
Target Audience: Public, Regulatory Stakeholders
Period of Validity: January – March 2025
Approval Date: May 2025
Date of Last Update: N/A
Relicence of the Sizewell A and Sizewell B Sites
Year: 2024
Region / city: Sizewell A, Sizewell B
Subject: Nuclear Site Licensing
Document Type: Project Assessment Report
Organization: Office for Nuclear Regulation
Author: Unknown
Target Audience: Nuclear industry professionals, regulatory authorities
Period of validity: Ongoing until de-designation direction by the Secretary of State
Approval Date: 24 July 2024
Amendment Date: None
ONR Site Report EDF Energy Nuclear Generation Limited - Sizewell B
Year: 2023
Region / City: Sizewell B
Topic: Nuclear safety inspection report
Document Type: Regulatory report
Organization / Institution: ONR (Office for Nuclear Regulation)
Author: Nominated Site Inspector
Target Audience: Public, stakeholders of Sizewell SSG
Period of Validity: January 1, 2023 – March 31, 2023
Approval Date: June 2023
Date of Modifications: None
ONR Site ReportNRS Ltd – Sizewell A
Year: 2024
Region / city: Sizewell
Topic: Nuclear regulation, inspection
Document Type: Report
Agency / institution: Office for Nuclear Regulation (ONR)
Author: ONR Nominated Site Inspector
Target audience: Public, stakeholders, regulatory professionals
Period of validity: January 1 – March 31, 2024
Approval date: April 2024
Modification date: N/A
ONR Site ReportEDF – Hartlepool Power Station
Year: 2025
Region / city: Hartlepool
Subject: Nuclear safety inspection
Document type: Site inspection report
Author: Site Inspector
Target audience: General public, Local Community Liaison Committee members
Effective period: 01 January – 31 March 2025
Approval date: April 2025
Last updated: N/A
ONR Site ReportEDF - Heysham Power Stations
Year: 2024
Region / City: Heysham
Topic: Nuclear Regulatory Inspection
Document Type: Site Report
Organization / Institution: Office for Nuclear Regulation (ONR)
Author: Nominated Site Inspector - Heysham 1
Target Audience: General public, Heysham Local Community Liaison Committee (LCLC)
Period of Action: 01 October – 31 December 2024
Approval Date: February 2025
Date of Last Update: Not specified
ONR Site ReportEDF - Torness Power Station
Year: 2024
Region / city: Torness
Topic: Nuclear regulation, inspection report
Document type: Site inspection report
Author: Lead Site Inspector
Target audience: Public, stakeholders, and interested parties
Period of validity: July 1, 2024 – September 30, 2024
Approval date: October 2024
Date of last modification: October 2024
ONR Site ReportEDF – Hartlepool Power Station
Year: 2023
Region / city: Hartlepool
Theme: Nuclear Safety, Regulatory Inspection
Document Type: Inspection Report
Organization: Office for Nuclear Regulation (ONR)
Author: ONR Site Inspector
Target Audience: Local Community Liaison Committee, public, industry professionals
Period of validity: 1 October – 31 December 2023
Approval Date: January 2024
Date of changes: Not specified
ONR site reportEDF Energy Nuclear Generation Ltd – Torness Power Station
Year: 2025
Region / city: Torness
Theme: Nuclear energy, regulatory inspections
Document type: Site report
Organization / institution: Office for Nuclear Regulation (ONR)
Author: Nominated Site Inspector
Target audience: General public, stakeholders
Period of validity: 1 April to 30 June 2025
Approval date: August 2025
Date of changes: N/A
ONR Site ReportEDF Energy Nuclear Generation Ltd – Heysham Power Stations
Year: 2024
Region / City: Heysham
Topic: Nuclear Site Inspections
Document Type: Site Report
Organization / Institution: Office for Nuclear Regulation (ONR)
Author: M Worsley, D Hackney, M Webb
Target Audience: Public, Local Community Liaison Committee
Period of Activity: 1 January to 31 March 2024
Approval Date: May 2024
Date of Changes: N/A
ONR Site ReportEDF Energy Nuclear Generation Ltd – Heysham Power Stations
Year: 2024
Region / City: Heysham
Topic: Nuclear site inspections, regulatory activities
Document Type: Site Report
Organization: Office for Nuclear Regulation (ONR)
Author: Heysham 1 and 2 Nominated Site Inspectors
Target Audience: General public, local community liaison committee members, regulatory stakeholders
Period of Action: 1 April to 30 June 2024
Approval Date: August 24, 2024
Date of Last Update: August 24, 2024
ONR Technical Inspection Guide - Safeguards
Year: 2023
Region / City: United Kingdom
Topic: Nuclear Safeguards
Document Type: Technical Inspection Guide
Organization / Institution: Office for Nuclear Regulation (ONR)
Author: Safeguards Inspector
Target Audience: Inspectors, Operators
Period of Validity: Until June 2026
Approval Date: January 2023
Review Date: June 2026
Date of Updates: January 2023, June 2026
Document Reference: SG-INSP-GD-001
Record Reference No.: ONRHH-822789359-20562
ONR Guidance (Under review) Guidance to Requesting Parties on the Generic Design Assessment (GDA) process for safety and security assessments of new Nuclear Power Plants (NPP)
Year: 2024
Region / city: Great Britain
Theme: Nuclear Power, Safety and Security, Regulatory Process
Document Type: Guideline
Organization: Office for Nuclear Regulation (ONR)
Author: M Connolly, T Parkes
Target Audience: Requesting Parties (RP) including vendors and partner organizations
Period of Effect: 2007–2027
Approval Date: August 2024
Next Major Review Date: August 2027
Document Reference: ONR-GDA-GD-006
Record Reference: 2024/34844
Revision Commentary: Formatting updates and content review
Contextual Description: A guideline document detailing the Generic Design Assessment (GDA) process for safety and security assessments of new Nuclear Power Plants (NPP) by the Office for Nuclear Regulation (ONR).
ONR site report BAE Systems Marine Limited – Devonshire Dock Complex
Year: 2025
Region / city: Devonshire Dock Complex
Subject: Nuclear Safety Inspection
Document Type: Regulatory Report
Organization: Office for Nuclear Regulation (ONR)
Author: Nominated Site Inspector
Target Audience: Public, Local Liaison Committee Members
Period of Effect: January 1, 2025 – June 30, 2025
Approval Date: August 2025
Date of Changes: May 2025
Contextual Description: Regulatory report on nuclear site inspections conducted at BAE Systems Marine Limited, detailing both routine and non-routine activities, including fire safety and incident investigations.
ONR Technical Inspection Guide (TIG)LC 3 – Control of Property Transactions
Year: 2025
Region / City: Not specified
Topic: Nuclear Safety, Property Transactions
Document Type: Technical Inspection Guide
Organization / Institution: Office for Nuclear Regulation (ONR)
Author: Nuclear Safety Inspector
Target Audience: Inspectors, Nuclear Facility Licensees
Period of Validity: Not specified
Approval Date: Not specified
Amendment Date: Not specified
ONR site report EDF Energy – Dungeness B
Year: 2025
Region / city: Dungeness
Topic: Nuclear site inspections
Document type: Site report
Organization / institution: Office for Nuclear Regulation (ONR)
Author: Nominated Site Inspector Dungeness B
Target audience: Stakeholders, public
Period of validity: 1 April – 30 June 2025
Approval date: August 2025
Date of changes: None
ONR Guidance Document Land use planning and the siting of nuclear installations
Year: 2024
Region / city: United Kingdom
Topic: Nuclear power plant siting, land use planning
Document type: Guidance document
Organization / institution: Office for Nuclear Regulation (ONR)
Author: Inspector
Target audience: ONR inspectors, technical audience
Period of validity: November 2024 - March 2026
Approval date: November 2024
Note: Revision history
Issue 1.3: Review date extended to June 2025
Issue 1.4: Review date extended to March 2026
Date of last update: November 2024
ONR Technical Assessment GuidePre-employment screening and national security vetting
Year: 2025
Region / City: United Kingdom
Theme: Nuclear Security, Personnel Screening
Document Type: Technical Assessment Guide
Author: Principal Inspector
Target Audience: ONR Inspectors, Dutyholders in the nuclear industry
Period of Validity: Until August 2029
Approval Date: August 2025
Date of Changes: August 2025
Reference: CNS-TAST-GD-8.2
Record Reference: ONRHH-822789359-20080
Topics: Sizewell ReportEDF ONR