Document History of REGDOC-2.5.2, Design of Reactor Facilities: Nuclear Power Plants

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Summary

Regulatory document REGDOC-2.5.2, Design of Reactor Facilities: Nuclear Power Plants sets out the CNSC's requirements and guidance for the design of new water-cooled nuclear power plants (NPPs).

REGDOC-2.5.2 was drafted following the identification of the need to update existing regulatory document RD-337, Design of New Nuclear Power Plants, which the CNSC published in 2008. The amendments to RD-337 ensure alignment with current national and international codes and practices, most notably the principles set forth in the International Atomic Energy Agency (IAEA) document SSR-2/1, Safety of Nuclear Power Plants: Design, and the adaptation of these principles to Canadian practices.

The revised requirements and new guidance also take into account findings from a benchmarking study, which compared RD-337 against the design requirements of the United States, the United Kingdom, France, Finland and the Western European Regulators Association to identify differences in objective, scope and level of detail.

In addition, REGDOC-2.5.2 implements recommendations from the CNSC's Fukushima Task Force Report. That report identified improvements to the CNSC's regulatory framework to strengthen the oversight of existing programs, including those for the design of new NPPs.

This regulatory document is intended for CNSC staff to use when reviewing applications to construct new NPPs in Canada. It is also intended to provide requirements and guidance to all applicants and licensees involved in preparing applications for a licence to construct an NPP. Finally, it assists reactor vendors in the development of new reactor designs.

REGDOC-2.5.2 consolidates the requirements and guidance related to the design of NPPs set out in draft RD-337 version 2, Design of Nuclear Power Plants, and draft GD-337, Guidance for the Design of New Nuclear Power Plants, which were released for public consultation in 2012.

This document is part of the physical design series of the CNSC's regulatory framework. Other documents in this series include: RD-367, Design of Small Reactor Facilities (June 2011), and GD-52, Design Guide for Nuclear Substance Laboratories and Nuclear Medicine Rooms (May 2010).

REGDOC-2.5.2 supersedes RD-337, Design of New Nuclear Power Plants (2008).

Status: published May 2014

Document Milestone Dates Links
Consultation RD-337 version 2 July 26, 2012 to October 4, 2012 View Information Bulletin 12-32 and Draft RD-337 version 2
Draft GD-337 September 18, 2012 to November 20, 2012 View Information Bulletin 12-42 and Draft GD-337
Invitation to provide feedback on comments received RD-337 version 2
Design of New Nuclear Power Plants
October 24, 2012 to November 8, 2012 View Information Bulletin 12-48 and the comments received
Draft GD-337
Guidance for the Design of New Nuclear Power Plants
December 14, 2012 to January 8, 2013 View Information Bulletin 12-56 and the comments received
View feedback received N/A No comments received
REGDOC-2.5.2, Design of Reactor Facilities: Nuclear Power Plants consolidates the requirements and guidance contained in Draft RD-337 version 2 and draft GD-337 February, 2013  
Presentation to the Commission August 22, 2013 View the consultation report (PDF)
and the comments table (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.2.5.2, Design of Reactor Facilities: Nuclear Power Plants
Presentation to the Commission March 27, 2014 View the consultation report (PDF) and comments received
Publication May 28, 2014 View News Release

Contact information

CNSC welcomes public input on regulatory documents. For questions and information related to REGDOC-2.5.2, Design of Reactor Facilities: Nuclear Power Plants, 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