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Consultation outcome

Rolls-Royce small modular reactor: justification application

From:
Department for Environment, Food & Rural Affairs
Published
6 October 2025
Last updated
8 May 2026 — See all updates
This consultation has concluded

Detail of outcome

See the Nuclear justification decision for the Rolls-Royce Small Modular Reactor.

We received 50 responses to the consultation.

Most respondents considered that the:

  • information provided in the Rolls鈥慠oyce Small Modular Reactor (SMR) justification application was sufficient to support an assessment
  • proposed practice should be regarded as a new class or type of practice
  • definition proposed in the application was the most appropriate definition for that class or type of practice

In her role as Justifying Authority, the Secretary of State, Emma Reynolds, decided that the Rolls鈥慠oyce SMR, designed by Rolls鈥慠oyce SMR Limited, should be justified under . This decision takes into account the consultation responses, analysis of the application, and engagement with the statutory consultees.

Original consultation

Summary

Seeking views on an application by the Nuclear Industry Association for a regulatory justification decision on the Rolls-Royce small modular reactor.

This consultation was held on .

This consultation ran from
to

Consultation description

We want to know what you think about:

  • the information presented on the benefits and detriments of the Rolls-Royce small modular reactor聽proposed practice
  • whether the proposed practice belongs to a new or existing class or type of practice
  • what the most appropriate definition of the class or type of practice is

Updates to this page

Published 6 October 2025
Last updated 8 May 2026 show all updates

  1. We have published the summary of responses and government response.

  2. We received 50 responses to the consultation. We will publish a summary of responses later in 2026.

  3. First published.

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