Document History of REGDOC-2.4.2, Probabilistic Safety Assessment (PSA) for Reactor Facilities, Version 2
View [e-consultation version of draft REGDOC-2.4.2, Version 2] [PDF version of REGDOC-2.4.2, Version 2 | 13 pages, 609 KB]
REGDOC-2.4.2 sets out requirements and guidance for conducting a Probabilistic Safety Assessment (PSA) for reactor facilities. New guidance has also been included as a result of additional feedback from stakeholders to clarify the intent of certain requirements.
The purpose of this regulatory document, when incorporated into a licence to construct or operate a nuclear reactor facility or other legally enforceable instrument, is to ensure that the licensee conducts a probabilistic safety assessment (PSA) in accordance with defined requirements.
The requirements and guidance contained in this regulatory document are applicable to all reactor facilities, including nuclear power plants, small reactor facilities, small modular reactors, or research reactors using a graded approach.
REGDOC-2.4.2, Version 2, supersedes REGDOC-2.4.2, Probabilistic Safety Assessment (PSA) for Nuclear Power Plants published in May 2014 and S-294, Probabilistic Safety Assessment (PSA) for Nuclear Power Plants, published in April 2005.
March 31, 2021: Consultation is open until June 29, 2021.
Note: The comments are posted in the language in which they were received. You may provide your feedback in the following ways:
- E-consultation on the draft document
- Email: email@example.com
Canadian Nuclear Safety Commission
P.O. Box 1046, Station B
280 Slater Street
Ottawa, Ontario, Canada Â K1P 5S9
- Fax: 613-995-5086
Comments submitted, including names and affiliations, are intended to be made public, in the official language in which they were received. Information of a personal nature, such as email addresses, phone numbers and mailing addresses, will not be made public. You will not receive a formal reply to your comments.
|Consultation||July 20, 2012 to September 28, 2012||View the Fukushima omnibus amendments (PDF) and the Information Bulletin 12-30|
|Invitation to provide feedback on comments received||October 28, 2012 to November 7, 2012||
View Information Bulletin 12-47 and the comments received
|View feedback received||December 12, 2012||
View Information Bulletin 12-55 and the comments received:Wilhelmina Nolan (PDF) and CCNB table (PDF)
|Presentation to the Commission||August 22, 2013||View the consultation report (PDF) and the comments received (PDF)|
|Additional consultation: limited to those who participated during initial consultation period||August 22 to October 21, 2013||View the email to commenters, the comments table and the additional consultation version of REGDOC-2.4.2, Probabilistic Safety Assessment|
|Presentation to the Commission||March 27, 2014||View the consultation report (PDF), comments table and supplementary comment received|
|Publication||May 23, 2014||View News Release|
|Consultation||March 31, 2021 to June 29, 2021||
View the consultation version of the document
[PDF version of draft REGDOC-2.4.2, Version 2 | 13 pages, 609 KB]
|Invitation to provide feedback on comments received||TBD||TBD|
|Presentation to the Commission||TBD||TBD|
For questions and information related to REGDOC-2.4.2, Probabilistic Safety Assessment (PSA) for Reactor Facilities, Version 2, please contact:
Directorate of Assessment and Analysis
280 Slater Street
Ottawa, ON, Canada K1P 5S9
Telephone: 1-800-668-5284 (Canada only)
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