News Release Article from  Canadian Nuclear Safety Commission

CNSC publishes REGDOC-2.3.1, Conduct of Licensed Activities: Construction and Commissioning Programs

The Canadian Nuclear Safety Commission (CNSC) has published regulatory document REGDOC-2.3.1, Conduct of Licensed Activities: Construction and Commissioning Programs.

REGDOC-2.3.1, Conduct of Licensed Activities: Construction and Commissioning Programs, sets out requirements and guidance for the construction and commissioning of facilities in Canada that use nuclear reactors. These facilities (referred to as "reactor facilities" in this document) include:

  • nuclear power plants (NPPs) or small reactors for the generation of power or heat for industrial process
  • small reactors for non-power-generation uses (e.g., isotope production, and research and development activities)

The requirements and guidance in this document apply primarily to NPPs. However, the principles behind the requirements and guidance are equally applicable to smaller facilities in a risk-informed (graded) manner, and should be considered in the overall safety case for any reactor facility.

The CNSC regulates the use of nuclear energy and materials to protect the health, safety and security of Canadians and the environment and to implement Canada's international commitments on the peaceful use of nuclear energy; and disseminates objective scientific, technical and regulatory information to the public.

Quick facts

  • All nuclear power plants in Canada use the CANDU design – a safe, reliable, reactor technology.
  • To comply with the CNSC's regulatory requirements and their own internal governance, nuclear power plant licensees conduct regular reviews of their performance to ensure safety is maintained.
  • Construction programs provide assurance that facilities are constructed per design, and major modifications to existing facilities are carried out appropriately.
  • Commissioning programs provide assurance that reactor facility components and systems operate in an integrated manner in accordance with the design objectives and meet the performance criteria regarding operational, occupational safety, and nuclear safety and security requirements

Related products 

Additional links


Aurèle Gervais
Media and Community Relations
Canadian Nuclear Safety Commission

Search for related information by keyword

Canadian Nuclear Safety Commission Economics and Industry

Date modified: