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Waste Management, Volume I: Management of Radioactive Waste
REGDOC-2.11.1 establishes requirements and guidance for Canadian Nuclear Safety Commission licensees managing radioactive waste, including characterization, storage, and disposal facilities. The document applies to all CNSC licensees under the Nuclear Safety and Control Act and is complemented by CSA N292 standards for comprehensive radioactive waste management oversight.
Application Guide: Certification of Radiation Devices or Class II Prescribed Equipment, Version 1.1
REGDOC-1.5.1 v1.1 is a Canadian Nuclear Safety Commission application guide helping applicants prepare and submit certification applications for radiation devices and Class II prescribed equipment. The guide ensures prescribed equipment is safe, protects public health and environment, meets national security standards, and complies with Canada's international nuclear obligations under the Nuclear Safety and Control Act.
Deterministic Safety Analysis
REGDOC-2.4.1 establishes Canadian Nuclear Safety Commission requirements for deterministic safety analysis at nuclear power plants and small reactor facilities (below 200 MWt). The document prescribes methods for safety analysis reports, design basis event selection, acceptance criteria, and documentation using a risk-informed, graded approach, incorporating Fukushima lessons and international safety practices.
Site Evaluation and Site Preparation for New Reactor Facilities, Version 1.3
REGDOC-1.1.1 establishes Canadian Nuclear Safety Commission requirements for site evaluation and preparation of new reactor facilities, including nuclear power plants and small modular reactors. Applicants must characterize sites, assess severe external events and multiple simultaneous accidents, and demonstrate adequate safety measures during site preparation and construction using a risk-informed, graded approach.
Security of Nuclear Substances: Sealed Sources and Category I, II and III Nuclear Material, Version 2.1
REGDOC-2.12.3 Version 2.1 establishes minimum security requirements for sealed radioactive sources and Category I, II, and III nuclear materials in Canada. Licensees must implement technical and administrative controls during storage, transport, and handling to prevent loss, sabotage, unauthorized possession, or illegal removal. Requirements cover security plans, transport vehicles, containers, and third-party carrier compliance.
Reporting Requirements for Waste Nuclear Substance Licensees, Class II Nuclear Facilities and Users of Prescribed Equipment, Nuclear Substances and Radiation Devices
REGDOC-3.1.3 establishes mandatory reporting requirements for Canadian Nuclear Safety Commission licensees managing waste nuclear substances, Class II nuclear facilities, and users of prescribed equipment and radiation devices. Licensees must report events, dangerous occurrences and situations within specified timeframes and submit annual compliance reports, following a risk-informed approach aligned with national and international nuclear safety standards.
Information Incorporated by Reference in Canada’s Packaging and Transport of Nuclear Substances Regulations, 2015, Volume I, Version 2
REGDOC-2.14.1 incorporates IAEA Standards (SSR-6) into Canada's Packaging and Transport of Nuclear Substances Regulations 2015, establishing requirements for safe radioactive material transport including licensing, package design, certification, material classification, radiation protection, and record-keeping. All persons transporting or offering nuclear substances must comply, with joint enforcement by the CNSC and Transport Canada.
Import and Export, Version 2
REGDOC-2.13.2 provides Canadian Nuclear Safety Commission guidance on licensing the import and export of controlled nuclear substances, dual-use equipment, and Category 1–2 radioactive sources. It outlines application procedures, licensing criteria, end-use controls, and compliance verification mechanisms to prevent nuclear weapons proliferation under the Nuclear Non-proliferation Import and Export Control Regulations.
Minimum Staff Complement
REGDOC-2.2.5 provides guidance to Canadian Class I nuclear facility licensees on demonstrating adequate staffing of qualified workers across all operating states—normal operations, anticipated occurrences, design-basis accidents, and emergencies—to ensure safe and compliant operation under the Nuclear Safety and Control Act.
Financial Guarantees for Decommissioning of Nuclear Facilities and Termination of Licensed Activities
REGDOC-3.3.1 establishes requirements for applicants and licensees of Canadian nuclear facilities to establish and maintain financial guarantees ensuring sufficient funds for safe decommissioning and termination of licensed activities. The regulation applies to Class IA/IB nuclear facilities, uranium mines and mills, and waste nuclear substances licenses under the Nuclear Safety and Control Act, superseding the 2000 guidance document G-206.
Accident Management, Version 2
REGDOC-2.3.2 establishes Canadian Nuclear Safety Commission requirements for integrated accident management at reactor facilities. Licensees must develop, implement, and validate defence-in-depth strategies, operational procedures, and capabilities to manage abnormal and severe accidents, consistent with IAEA safety standards and informed by lessons from the 2011 Fukushima event.
Operations Programs for Reactor Facilities
REGDOC-2.3.4 establishes requirements and guidance for developing and implementing operations programs at nuclear reactor facilities, including conventional power plants, advanced reactors, and small modular reactors. Licensees may apply risk-informed and graded approaches proportional to facility risk profiles, based on operational experience and best practices from water-cooled reactors.
Decommissioning
REGDOC-2.11.2 establishes Canadian Nuclear Safety Commission requirements and guidance for decommissioning Class I and II nuclear facilities, uranium mines and mills, and nuclear substance sites. It covers all phases from planning through completion, including storage with surveillance, decontamination, dismantling and cleanup to safely retire facilities while protecting human health and the environment.
Licence Application Guide: Licence to prepare Site for a Deep Geological Repository
REGDOC-1.2.3 is the Canadian Nuclear Safety Commission's licence application guide for entities seeking to obtain a licence to prepare sites for deep geological repositories (DGR) of radioactive waste. It establishes comprehensive requirements across management systems, radiation protection, safety analysis, environmental protection, waste management, security, and public engagement, applying a risk-proportionate graded approach throughout the DGR lifecycle and site preparation stages.
Fitness for Duty: Managing Worker Fatigue
REGDOC-2.2.4 establishes Canadian Nuclear Safety Commission requirements for managing worker fatigue at high-security nuclear facilities. Licensees must implement human performance programs using a graded approach proportionate to facility risk to minimize worker errors affecting nuclear safety and security.
Aging Management
REGDOC-2.6.3 establishes Canadian Nuclear Safety Commission requirements for managing aging of structures, systems, and components in power reactor facilities throughout their licensed service life. Licensees must implement coordinated engineering, operational, inspection, and maintenance programs to control physical aging and obsolescence, ensuring required safety functions remain reliable and available in accordance with the licensing basis.
Nuclear Emergency Preparedness and Response, Version 2
REGDOC-2.10.1 establishes emergency preparedness and response requirements for Canadian Class I nuclear facilities and uranium mines/mills licensed by the CNSC. Licensees must develop risk-proportionate emergency programs based on four components: planning basis, program management, response procedures, and preparedness. The standard aligns with IAEA guidance to prevent or mitigate effects of accidental releases.
Framework for Radioactive Waste Management and Decommissioning in Canada, Version 2
REGDOC-2.11 establishes Canada's regulatory framework for radioactive waste management and decommissioning under the Canadian Nuclear Safety Commission. It defines radioactive waste as any material containing radioactive nuclear substances with no further use, and requires waste owners to safely manage such materials through generation, handling, processing, storage, transport, and disposal while protecting public health, safety, environment, and national security. The document provides governance overview and principles for consistent national and international standards.
Controlling Releases to the Environment
REGDOC-2.9.2 establishes Canadian Nuclear Safety Commission requirements for controlling environmental releases from nuclear facilities. Licensees must apply best available technology and techniques economically achievable (BATEA), establish licensed release limits and action levels, validate treatment system performance, and implement adaptive management when unreasonable risk is identified.
Design, Testing and Performance of Exposure Devices, Version 1.1
REGDOC-2.5.7 Version 1.1 establishes Canadian Nuclear Safety Commission requirements for design, testing, and certification of exposure devices used in industrial radiography with sealed radioactive sources. The regulation mandates compliance with ISO 3999:2004 and specifies technical requirements for sealed source design, safety mechanisms, automatic securing devices, calibration, endurance and vibration testing, and labelling for portable non-destructive testing equipment used to inspect welds, castings, and building components.
Reporting Requirements, Volume I: Non-Power Reactor Class I Facilities and Uranium Mines and Mills, Version 1.1
REGDOC-3.1.2 establishes reporting requirements for Canadian Nuclear Safety Commission licensees operating Class I non-power reactor facilities, uranium mines, and mills. Licensees must submit operational compliance reports, significant event notifications, and business activity notifications using a risk-graded approach. This document consolidates and replaces four prior regulatory documents governing uranium refining, fuel fabrication, and processing facility reporting.
Probabilistic Safety Assessment (PSA) for Reactor Facilities, Version 2
REGDOC-2.4.2 Version 3 establishes requirements for probabilistic safety assessments (PSA) at Canadian reactor facilities including nuclear power plants, small reactors, and research reactors. Licensees must conduct systematic analyses demonstrating facility designs protect people and the environment from radiation, achieve balanced designs without disproportionate risk contributions, and prevent cliff-edge effects, using a graded approach aligned with IAEA standards.
Design of Uranium Mines and Mills: Ventilation Systems, Version 1.1
REGDOC-2.5.4 is a Canadian Nuclear Safety Commission regulatory guide for ventilation system design in uranium mines and mills. It establishes requirements for ventilation-related information in licence applications for site preparation, construction, operation, and decommissioning of underground and surface licensable areas, applying a risk-informed, graded approach to protect worker and radiation safety consistent with modern national and international nuclear standards.
Licence Application Guide: Licence to operate a Nuclear Power Plant, Version 1.3
REGDOC-1.1.3 is the Canadian Nuclear Safety Commission's regulatory guide for licence applications to operate nuclear power plants in Canada. It establishes requirements and guidance using a risk-informed, graded approach, requiring applicants to demonstrate qualifications and adequate safety provisions. No fuel may be loaded until the CNSC grants an operating licence.
Design of Rooms Where Unsealed Nuclear Substances Are Used
REGDOC-2.5.6 establishes Canadian Nuclear Safety Commission design requirements for rooms using unsealed nuclear substances. It provides guidance on room finishings, contamination control, ventilation systems, fume hoods, hot cells, and access control across intermediate-level, high-level, containment-level, and nuclear medicine facilities, implementing a risk-informed approach to minimize worker radiation doses per ALARA principles.
Personnel Certification: Radiation Safety Officers
REGDOC-2.2.3 establishes Canadian Nuclear Safety Commission guidance for certifying Radiation Safety Officers at Class II nuclear facilities. It outlines application requirements, qualification criteria, and certification examination procedures to ensure RSOs are competent to perform their safety duties. An exemption applies to persons already certified in equivalent positions at Class I facilities.
Personnel Training, Version 2
REGDOC-2.2.2 establishes mandatory training system requirements for Canadian nuclear facility licensees. Licensees must develop, implement, and maintain comprehensive training programs covering analysis, design, development, implementation, evaluation, and documentation to ensure workers are competent and qualified to safely perform duties involving nuclear substances and equipment. A graded approach commensurate with risk may be applied.
Indigenous Engagement, Version 1.2
REGDOC-3.2.2 Version 1.2 establishes requirements for Canadian nuclear licensees to conduct meaningful engagement with Indigenous peoples (First Nations, Inuit, Métis) and provides procedural guidance supporting the Canadian Nuclear Safety Commission's duty-to-consult obligations under federal law. Version 1.2 includes administrative updates to references regarding the Commission Registry.
Information Dissemination: Licensing Process for Class I Nuclear Facilities and Uranium Mines and Mills, Version 2.1
REGDOC-3.5.1 outlines the Canadian Nuclear Safety Commission's licensing process for Class I nuclear facilities and uranium mines and mills. All persons and companies must obtain a CNSC licence before site preparation, construction, operation, decommissioning, or abandonment of nuclear facilities, or possession, use, transport, and storage of nuclear substances under the Nuclear Safety and Control Act. Version 2.1 is an administrative update reflecting January 2022 organizational changes to the Commission Secretariat and Secretary roles.
Supplemental Information for Small Modular Reactor Proponents, Version 1.1
REGDOC-1.1.5 provides supplemental guidance for Small Modular Reactor (SMR) licence applicants to Canada's Nuclear Safety Commission. It establishes a risk-informed, graded approach for water-cooled and advanced reactors ranging from megawatts to several hundred megawatts, supporting licence applications for site preparation, construction, operation, and decommissioning stages.
Management System
REGDOC-2.1.1 establishes management system requirements for Canadian Nuclear Safety Commission licensees operating Class 1A and 1B reactors, uranium mines and mills, and radioactive waste facilities. Licensees must develop and implement frameworks of processes, procedures, and practices aligned with CSA standard N286-12 to safely conduct licensed activities and ensure regulatory compliance.
Nuclear Fuel Safety
REGDOC-2.4.5 establishes Canadian Nuclear Safety Commission requirements for nuclear fuel design, operation, monitoring, qualification, and performance assessment in operating reactor facilities. The regulation defines three core fuel safety functions: retaining radionuclides, maintaining coolable geometry, and supporting safe shutdown. It applies primarily to CANDU reactors while remaining technology-neutral and aligns with CSA and IAEA standards.
Design of Reactor Facilities, Version 2.1
REGDOC-2.5.2 Version 2.1 establishes comprehensive design requirements for new water-cooled nuclear reactor facilities in Canada, aligning with IAEA safety standards and promoting defence-in-depth design principles. The document applies to new licence applications; existing facilities licensed before 2014 are exempt unless explicitly included in their licensing basis.
Dosimetry, Volume I: Ascertaining Occupational Dose
REGDOC-2.7.2 Volume I provides Canadian regulatory guidance for nuclear licensees on ascertaining and recording occupational radiation doses to workers. It mandates licensed dosimetry services for annual skin doses exceeding 50 mSv, requires measurement of eye lens equivalent dose, and outlines procedures for modifying dose records in Health Canada's National Dose Registry, covering both external and internal radiation dose assessment.
Conventional Health and Safety
REGDOC-2.8.1 establishes Canada's conventional health and safety framework for CNSC-licensed nuclear facilities. Licensees must implement proactive occupational health and safety programs to identify, assess, and mitigate workplace hazards, ensuring compliance with the Nuclear Safety and Control Act and applicable federal, provincial, and territorial occupational health and safety legislation.
Pre-licensing Review of a Vendor’s Reactor Design
REGDOC-3.5.4 describes the Canadian Nuclear Safety Commission's optional pre-licensing review service for nuclear reactor vendor designs. The service assesses designs for safety, security, and safeguards compliance to identify regulatory or technical issues early and increase certainty, but does not certify designs, bind future licensing decisions, or constitute a required part of the licensing process.
Glossary of CNSC Terminology
REGDOC-3.6 is the Canadian Nuclear Safety Commission's official glossary providing standardized definitions for terms used in the Nuclear Safety and Control Act, CNSC regulations, and regulatory documents. Updated regularly as an evergreen reference since December 2016, it ensures consistency and serves as the authoritative standard for future CNSC regulatory guidance and communications.
General Design Considerations: Human Factors
REGDOC-2.5.1 provides guidance for Canadian nuclear licensees on integrating human factors engineering into Class I nuclear facilities and uranium mining/milling operations. Licensees must develop human factors engineering program plans and conduct verification and validation activities to ensure health, safety, and environmental protection through systematic consideration of human performance in facility design and licensed activities.
Safety Culture
REGDOC-2.1.2 establishes Canadian Nuclear Safety Commission requirements for Class I nuclear facilities and uranium mines/mills to develop and maintain healthy safety cultures. Organizations must foster shared values and common understandings that reinforce worker perceptions of safety importance through a risk-proportionate graded approach. Safety and security cultures coexist to limit risks from nuclear substances and facilities.
Design of Industrial Radiography Installations
REGDOC-2.5.5 provides design guidance for industrial radiography installations using sealed nuclear sources (cobalt-60, iridium-192, selenium-75) for non-destructive testing of materials in welds, castings, and structures. Installations must incorporate adequate shielding and safety features to limit radiation exposure to certified operators, workers, and the public within regulatory limits while maintaining doses as low as reasonably achievable, and comply with applicable building, fire protection, and safety codes.
Radiation Protection Guidelines for the Safe Handling of Decedents
REGDOC-2.7.3 provides guidance for death-care professionals on safely handling deceased individuals who retain radioactive material from therapeutic nuclear medicine and manual brachytherapy procedures. The document recommends radiation protection measures and dose minimization practices to protect workers and the public from residual nuclear substance exposure. Temporary implants removed before body release require no special precautions.
Environmental Principles, Assessments and Protection Measures, Version 1.2
REGDOC-2.9.1 Version 1.2 establishes the Canadian Nuclear Safety Commission's environmental protection framework for nuclear facilities and activities. It requires environmental reviews proportionate to risk, mandates environmental risk assessments (ERAs) updated at least every five years or when significant changes occur, and specifies that licensees must demonstrate adequate environmental protection measures for facilities with direct environmental interactions.
Guide for Applicants and Intervenors Writing CNSC Commission Member Documents, Version 1.1
REGDOC-3.4.1 is a procedural guide from Canada's Nuclear Regulatory Commission (CNSC) establishing requirements and best practices for applicants and intervenors preparing Commission Member Documents in nuclear licensing proceedings. It provides guidance on plain-language writing, document formatting, filing procedures, and templates to facilitate effective presentation of science-based evidence and efficient Commission hearings.
Compliance and Enforcement: Administrative Monetary Penalties, Version 2
REGDOC-3.5.2 describes Canada's Nuclear Safety Commission's administrative monetary penalties (AMPs) program for enforcing nuclear safety compliance. The CNSC applies a three-tiered compliance approach combining communication, verification, and enforcement measures under the Nuclear Safety and Control Act to ensure regulated entities meet requirements and protect public health, security, and the environment.
Radiation Protection Programs for Nuclear Substances and Radiation Devices Licences
REGDOC-1.6.2 provides Canadian CNSC licensees with guidance on developing, implementing, managing and assessing radiation protection programs for nuclear substances and radiation devices. The document establishes roles and responsibilities of radiation safety officers, defines core program elements including people and procedures, and requires programs proportionate to licensed activities' scope, risk level and complexity.
Regulatory Fundamentals, Version 3
REGDOC-3.5.3 is an informational document describing the Canadian Nuclear Safety Commission's regulatory philosophy and approach under the Nuclear Safety and Control Act. It outlines how the CNSC regulates nuclear energy, materials, and substances to protect health, safety, security, and the environment while fulfilling Canada's international nuclear safeguards commitments. Contains no binding requirements for licensees.
Reporting Requirements for Nuclear Power Plants, Version 3
REGDOC-3.1.1 Version 3 consolidates Canadian Nuclear Safety Commission reporting requirements for nuclear power plant licensees. It mandates immediate notifications of safety events, routine periodic reports including cybersecurity documentation, introduces a retraction process for conservatively reported events, and applies graded approaches across reactor lifecycle phases.
Site Access Security Clearance
REGDOC-2.12.2 provides Canadian Nuclear Safety Commission guidance for granting, denying, renewing, and revoking site access security clearances (SASC) for authorized unescorted entry to protected areas at high-security nuclear facilities. The clearance process, mandated under the Nuclear Safety and Control Act and Nuclear Security Regulations, prevents insider threats and mitigates unreasonable risks to facility operations, personnel safety, and national security.
Conduct of Licensed Activities: Construction and Commissioning Programs
REGDOC-2.3.1 establishes Canadian Nuclear Safety Commission requirements for construction and commissioning of nuclear reactor facilities, including power plants and small reactors for power generation, industrial heat, isotope production, and research applications. The document applies risk-informed, graded approaches to safety-critical structures, systems, and components and forms the licensing basis for regulated facilities.
Periodic Safety Reviews
REGDOC-2.3.3 establishes Canadian Nuclear Safety Commission requirements for periodic safety reviews of nuclear power plants. PSRs comprehensively assess plant design, condition, and operation against current codes, standards, and best practices using a graded risk-based approach to identify improvements ensuring safe long-term operation and conformance to modern safety levels.