Question to the Department for Energy Security & Net Zero:

To ask His Majesty's Government what generic design assessments the Office for Nuclear Regulation are currently undertaking; and when they expect each of those assessments to be completed.

The ONR are currently undertaking two GDAs, step three of the Rolls Royce SMR and step two of the Holtec SMR-300. Publication of the completion dates for those processes is a matter for the regulators, including the ONR, and the Requesting Parties. These may be subject to change as the processes continue.

Further details on the Office for Nuclear Regulation’s (ONR) current and previous Generic Design Assessments (GDAs) can be found at https://www.onr.org.uk/generic-design-assessment/assessment-of-reactors.