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Design Authorisation Framework

Official source

Source domain: nnr.co.za

Collected on 6 August 2026

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What this means

This document is the Design Authorisation Framework issued by the National Nuclear Regulator (NNR) of South Africa, outlining the two-stage process for granting a nuclear installation licence to design a nuclear installation. It defines the legal basis, application procedures, assessment phases, and regulatory requirements for evaluating the safety case of a proposed nuclear installation's design. The framework specifies that applicants must submit project management documentation and initial design information, and outlines the NNR's role in assessing the applicant's management systems and the evolving safety case over four phases of design assessment. It also details cost recovery mechanisms through fees and operational charges.

What this document offers

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application review processOngoing

Stage 1: Acceptance/Rejection of Application

Applicants may have their application for a nuclear installation design licence accepted or rejected based on the adequacy of submitted project management documentation and initial design information. This stage determines whether the applicant can proceed to the full safety case assessment.

Who it is for: applicants submitting design authorisation applications
How to act on it: Submit project management documentation and initial design information to the NNR for evaluation

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6.1 Acceptance/rejection of the application 11

safety case assessment processOngoing

Stage 2: Safety Case Assessment

Once the application is accepted, the applicant must undergo a four-phase safety case assessment process, including concept design evaluation, principal safety reviews, reference design assessment, and post-assessment activities. This ensures the proposed design meets all safety requirements before proceeding.

Who it is for: applicants whose design applications have been accepted
How to act on it: Participate in the phased safety case assessment by submitting required documentation at each phase

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7 DESIGN ASSESSMENT PROCESS - ASSESSMENT OF THE SAFETY CASE FOR A DESIGN OF A NUCLEAR INSTALLATION (STAGE 2) 13

Facts

Reference

PP-0008

Key Takeaways

PP-0008
Design Authorisation Framework
National Nuclear Regulator (NNR)
nuclear installation licence to design
Stage 1: Acceptance/Rejection of Application
Stage 2: Safety Case Assessment
Reference Design
Concept Design
Safety Evaluation Report (SER)
Section 5(b) of NNR Act
ALARA, DiD, PIRT, FMECA, HAZOP, V&V
costs recovered hourly and monthly
five-year safety case submission timeframe
National Nuclear Regulator (NNR)
Acting Chief Executive Officer
Manager: PBMR
P Bester
Senior Regulatory Officer
J Joubert
K Naidoo
R Elk
T Pather
THill
G Nhlapho
A Muller
o Phillips
M Msebenzi
NNR Act
Appendix A
Appendix B