Document History of REGDOC-3.5.3, Regulatory Fundamentals

View REGDOC-3.5.3, Version 2.1 [HTML] [PDF]


Regulatory document REGDOC-3.5.3, Regulatory Fundamentals, outlines the CNSC’s regulatory philosophy and approach to applying the Nuclear Safety and Control Act. It provides information for licensees, applicants and the public, and contains neither guidance nor requirements. The information in this regulatory document will be of interest to anyone seeking to learn more about the CNSC and how it regulates nuclear activity in Canada.

Version 2.1 includes administrative updates to references to the Secretariat. As of January 1, 2022, the Commission Secretariat was renamed the Commission Registry and the Commission Secretary became the Commission Registrar.


February 2022: Published

Document Milestone Dates Links
Publication August 2018 View REGDOC-3.5.3, Regulatory Fundamentals | PDF
Presentation to the Commission December 2020 N/A
Publication January 2021 View REGDOC-3.5.3, Version 2 [HTML] [PDF]
Publication February 2022 View REGDOC-3.5.3, Version 2.1 [HTML] [PDF]

Contact information

For questions and information related to REGDOC-3.5.3, Regulatory Fundamentals contact:

Regulatory Policy Directorate

Canadian Nuclear Safety Commission
P.O. Box 1046, Station B
280 Slater Street
Ottawa, ON, Canada K1P 5S9

Telephone: 1-800-668-5284 (Canada only)
Fax: 613-995-5086

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