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

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

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

The purpose of this regulatory document is to assist Class I nuclear facility licensees and applicants for a Class I nuclear facility licence to demonstrate to the CNSC that they will ensure the presence of a sufficient number of qualified workers to carry on the licensed activity safely and in accordance with the Nuclear Safety and Control Act (NSCA, the Act) [1], the regulations made under the NSCA, and their licence.

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 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 provides guidance and clarity on requirements for the application of the RPR. This regulatory document will help ensure that licensees implement adequate measures for radiation protection in accordance with the Nuclear Safety and Control Act (NSCA, the Act) and the RPR. This regulatory document is intended for use by CNSC licensees and applicants

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.