Document History of REGDOC-2.4.1, Deterministic Safety Analysis

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Contact information for REGDOC-2.4.1

Summary

Regulatory document REGDOC-2.4.1, Deterministic Safety Analysis, sets out requirements and guidance for the preparation and presentation of a safety analysis, including the selection of events to be analyzed, acceptance criteria, safety analysis methods, and safety analysis documentation, to demonstrate the safety of a nuclear facility.

The CNSC's Fukushima Task Force Report and the CNSC Integrated Action Plan on the lessons learned from the Fukushima Daiichi nuclear accident identified improvements to existing regulatory documents to strengthen the regulatory framework. REGDOC-2.4.1includes targeted amendments to existing requirements that are specified in regulatory documents RD-310, Safety Analysis for Nuclear Power Plants, and RD-308, Deterministic Safety Analysis for Small Reactor Facilities, to address the lessons learned from the Fukushima event.

This document includes content from GD-310, Guidance on Safety Analysis for Nuclear Power Plants, published in March 2012, which already included changes driven by the lessons from the Fukushima accident. As a result, the existing content has been integrated into REGDOC-2.4.1.

This document is part of the Safety Analysis series of the CNSC's regulatory framework. Other documents in this series are REGDOC-2.4.2, Probabilistic Safety Assessment (PSA) for Nuclear Power Plants (published in May 2014) and RD-327, Nuclear Criticality Safety (December 2010).

REGDOC-2.4.1 supersedes:

  • RD-310, Safety Analysis for Nuclear Power Plants (February 2008)
  • RD-308, Deterministic Safety Analysis for Small Reactor Facilities (June 2011)
  • GD-310, Guidance on Safety Analysis for Nuclear Power Plants (March 2012)

Status: published May 2014

Document Milestone Dates Links
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:

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-2.4.1, Deterministic Safety Analysis
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

Contact information

CNSC welcomes public input on regulatory documents. For questions and information related to REGDOC-2.4.1, Deterministic Safety Analysis, please contact:

Directorate of Assessment and Analysis
Canadian Nuclear Safety Commission
P.O. Box 1046, Station B
Ottawa, Ontario, Canada K1P 5S9

Telephone: 1-800-668-5284 (Canada only)
Fax: 613-995-5086
Email: info@cnsc-ccsn.gc.ca