For nuclear facilities and activities, environmental protection is done in accordance with the Nuclear Safety and Control Act (NSCA) and the regulations made under it. The legislation includes provisions to ensure that licensees are meeting the CNSC’s mandate to protect health, safety and security and the environment. Under the NSCA and its regulations, licensees are required to take all reasonable precautions to control the release of nuclear and hazardous substances to the environment from licensed facilities or activities. As part of an application for a licence to construct, operate or decommission a nuclear facility, applicants and licensees are required to assess the effects on the environment and the health and safety of persons, and identify prevention or mitigation measures. In addition, the application must identify the: • proposed location(s) of releases • proposed maximum quantities and concentrations • anticipated volume and flow rate of releases of nuclear and hazardous substances into the environment • proposed measures to control releases of nuclear substances and hazardous substances into the environment This regulatory document describes the requirements and guidance for controlling releases to the environment, through: • applying the concept of best available technology and techniques economically achievable (BATEA) • implementing licensed release limits and action levels for releases to the environment • commissioning a treatment system and confirming performance • implementing adaptive management where require

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 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 document provides information about making, receiving, reviewing, appealing and redetermining orders pursuant to the Nuclear Safety and Control Act (NSCA) and its regulations.

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.

REGDOC-2.13.1, Safeguards and Nuclear Material Accountancy, sets out CNSC requirements and guidance for the establishment and maintenance of a safeguards program.

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.

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.

This regulatory document consolidates the requirements and guidance of the Canadian Nuclear Safety Commission (CNSC) for reports and, notifications to and the filing of specific records with the CNSC by licensees of nuclear power plants (NPPs), as well as the applicable time frames for reporting. Licensees are required to report to or notify the CNSC of situations, events, or dangerous occurrences that may require short-term action by the CNSC. They are also required to submit or file other reports, notifications or specific records, including routine scheduled reports on various topics such as certain normal business activities that are required for action by the CNSC, or that are required for longer-term compliance monitoring.

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).