Global regulations corpus
Browse 15,074 regulations from 36 regulators
2,983 updated in the last 30 days. Public corpus — no signup required to read.
Showing 1–26 of 26 regulations
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Reliability Programs for Nuclear Power Plants
REGDOC-2.6.1 establishes Canadian Nuclear Safety Commission requirements for reliability programs at nuclear power plants. Licensees must develop and implement programs ensuring systems important to safety meet defined design and performance criteria throughout the facility's lifetime, covering assessment, modelling, evaluation and monitoring across all lifecycle phases from design through decommissioning.
Safety Analysis for Class IB Nuclear Facilities
REGDOC-2.4.4 establishes safety analysis requirements for Canadian Class IB nuclear facilities processing uranium, thorium, plutonium and other nuclear substances. Licensees must implement managed safety analysis programs using risk-informed graded approaches to systematically evaluate hazards, document design measures, and maintain records demonstrating facility safety commensurate with their risk profiles.
Nuclear Criticality Safety, Version 1.1
REGDOC-2.4.3 Version 1.1 establishes Canadian Nuclear Safety Commission requirements for preventing criticality accidents in handling, storage, processing, and transportation of fissionable materials outside reactors. It defines minimum physical constraints and limits applicable during facility construction, operation, decommissioning, and abandonment, aligned with IAEA and ANSI/ANS standards.
Maintenance Programs for Nuclear Power Plants
REGDOC-2.6.2 establishes Canadian Nuclear Safety Commission requirements for maintenance programs at nuclear power plants. Licensees must develop comprehensive policies, processes and procedures for monitoring, inspection, testing, repair and replacement of all structures, systems and components based on safety importance, emphasizing preventive maintenance and continuous improvement aligned with international IAEA standards.
Chemistry Control for Reactor Facilities
REGDOC-2.6.4 establishes chemistry control program requirements for Canadian reactor facilities (NPPs, advanced reactors, SMRs, research reactors) to ensure structural integrity of safety-critical systems, protect fuel, minimize radioactive material buildup, and achieve ALARA environmental releases. Licensees may propose risk-informed or alternative approaches proportionate to their facility's risk profile.
Human Performance, Version 2
REGDOC-2.2.1 Version 2 establishes human performance management requirements for Canadian Class I nuclear facilities and uranium mines/mills. Licensees must systematically manage human, technological, and organizational factors using a risk-proportionate graded approach, incorporating IAEA standards and ISO human-centered management principles to achieve safe and effective performance.