This regulatory document sets out requirements and guidance for reports and notifications that licensees of Class I nuclear facilities (excluding power reactors) and of uranium mines and mills must submit to the Canadian Nuclear Safety Commission (CNSC). This document presents the types of reports and the applicable timeframe for reporting. Licensees are required to report to the CNSC regarding situations, events and dangerous occurrences that may require short-term action by the CNSC. Licensees must also submit an annual compliance monitoring report. Licensees are also required to provide notification of certain normal business activities (such as work disruptions or financial status) and to file specific records with the CNSC in accordance with the Nuclear Safety and Control Act (NSCA) and the regulations made under the NSCA.

This regulatory document sets out the requirements of the Canadian Nuclear Safety Commission (CNSC) with regard to maintenance programs for nuclear power plants (NPPs). This document also provides information and guidance on how the requirements may be met. When incorporated into a licence or other legally enforceable instrument, this regulatory document becomes a legal requirement.

This regulatory document sets out requirements and guidance for reports and notifications that licensees of waste nuclear substances, Class II nuclear facilities and users of prescribed equipment, nuclear substances and radiation devices must submit to the Canadian Nuclear Safety Commission (CNSC). This document also presents the types of reports and the applicable timeframe for reporting. Licensees and those who transport nuclear substances are required to report to the CNSC regarding situations, events and dangerous occurrences. Regulatory document REGDOC-3.1.3 incorporates and clarifies requirements found in the Nuclear Safety and Control Act (NSCA) and regulations made under the NSCA, including requirements for content and timing of reports. Additionally, it provides guidance on the interpretation and scope of application of these requirements in the context of Class II nuclear facilities, nuclear substances and radiation devicesand waste nuclear substance licensees. Further to the reporting requirements set by the NSCA and the regulations, a licence may contain any term or condition that identifies a reporting requirement and the time frame for submitting the report. This document provides guidance on these licence conditions, including the submission of an annual compliance report (ACR).

This regulatory document sets out the requirements of the Canadian Nuclear Safety Commission (CNSC) for deterministic safety analysis for nuclear power plants (NPPs) and small reactor facilities.

This regulatory document sets out the requirements of the Canadian Nuclear Safety Commission (CNSC) for the design of new water-cooled nuclear power plants. It establishes a set of comprehensive design requirements and guidance that are risk-informed and align with accepted national and international codes and practices.

REGDOC-2.6.1, Reliability Programs for Nuclear Power Plants, sets out the requirements and guidance of the Canadian Nuclear Safety Commission (CNSC) for the development and implementation of a reliability program for a nuclear power plant (NPP) in Canada. The reliability program assures that the systems important to safety (SIS) shall meet their defined design, and performance criteria at acceptable levels of reliability throughout the lifetime of the facility.

This regulatory document clarifies the regulatory requirements and provides guidance for the design, operation, monitoring, qualification and performance assessment of nuclear fuel. It articulates a set of comprehensive fuel-related regulatory requirements and provides risk-informed guidance that aligns with accepted national and international codes and practices.

Environmental protection for nuclear facilities and activities is done in accordance with the Nuclear Safety and Control Act (NSCA) and the regulations made under the NSCA. This legislation includes provisions to ensure that licensees are meeting the CNSC’s mandate to protect the environment and the health, safety and security of persons. The CNSC requires the environmental effects of all nuclear facilities or activities to be considered and evaluated when licensing decisions are made. This regulatory document provides information to applicants and licensees on protecting the environment and the health of persons, including: - identification of facility or activity interactions with the environment and the public - identification and mitigation of potential environmental effects associated with these interactions - design and implementation of effluent and emission release measures and of the environmental monitoring measures to confirm or test the predictions and the actual effects - periodic assessments of the environmental protection measures and the licensee’s performance In particular, this regulatory document describes: - the CNSC’s principles for environmental protection - for all nuclear facilities or activities that interact with the environment, the scope of an environmental assessment (EA) and the roles and responsibilities associated with an EA - the CNSC’s requirements and guidance to applicants and licensees for developing environmental protection measures, including an environmental risk assessment (ERA) where required, for both new and existing facilities or activities

This regulatory document provides information on conventional health and safety (CHS). In accordance with the Nuclear Safety and Control Act (NSCA), the CNSC has a mandate related to the risks to health and safety of persons associated with the development, production and use of nuclear energy, with the production, possession and use of nuclear substances, and with prescribed equipment and information. CHS is a safety and control area (SCA) that covers the implementation of a program to manage workplace safety hazards and to protect workers. Occupational health and safety (OHS) seeks to prevent worker illness and injuries through the proactive identification and mitigation of hazards. OHS in a nuclear setting consists of four SCAs: CHS; emergency management and fire protection; physical design; and radiation protection. The CNSC evaluates each SCA to determine whether licensees meet the regulatory requirements set out in the NSCA and its associated regulations.

This regulatory document clarifies requirements and provides guidance for applicants and licensees on how to demonstrate the safety of a Class IB nuclear facility, including information relating to: • the safety analysis program (the managed process that governs the conduct of a safety analysis) • the conduct of a safety analysis (the systematic evaluation of the potential hazards) • safety analysis documents, records and reporting