The Preliminary Safety Report (PSR) was submitted to the regulators at the end of Step 2. The PSR set out a high level overview of the safety case, the environment case and the security claims for the proposed nuclear reactor design.
The main objective of the PSR was to provide sufficient information for the regulators to carry out Step 2 GDA and the scope of the report was agreed with the regulators during Step 1.
As part of the GDA process, the public was invited to review and comment on the PSR from 16 November 2017 until 31 August 2018. All comments were reviewed and responded to by GNS and were shared with the regulators.
The PSR set out the initial structure of the Pre-Construction Safety Report (PCSR) which, through Steps 3 and 4 of the GDA process, will provide the arguments and evidence to substantiate the safety case claims. For ease of access, the PSR has been split into 27 chapters as shown in the table below.
In November 2018, the Regulators concluded that the information submitted by GNS during Step 2 was sufficient to allow the start of Step 3.