Application Review Schedule for the NuScale US600 Design

The following table summarizes the key milestones in the schedule that the U.S. Nuclear Regulatory Commission (NRC) established and completed for its review of the design certification application for the NuScale Small Modular Reactor (SMR) design.

Key Milestones Completion Date
Actual – A
Target – T
Received design certification application
01/06/17 – A
Acceptance Review
Issue acknowledgement letter to applicant
01/18/17 – A
Publish Federal Register Notice of receipt of application
02/15/17 – A
Issue acceptance letter to applicant
03/23/17 – A
Publish Federal Register Notice of docketing of application
03/20/17 – A
Safety Review
Phase 1 – Preliminary Safety Evaluation Report (SER) and Requests for Additional Information
04/16/18 – A
Phase 2 – SER with Open Items
07/12/191 – A
Phase 3 - ACRS Review of SER with Open Items
07/12/19 – A
Phase 4 – Advanced SER with No Open Items
12/12/19 – A
Phase 5 – ACRS Review of Advanced SER with No Open Items
07/31/202 – A
Phase 6 – Final SER with No Open Items
08/28/203 – A

Note 1: Phase 2 is considered complete. However, due to some unresolved issues, the SERs for Chapters 15 and 20 remained preliminary and a final Phase 2 SER was not issued. Any remaining issues and associated open items were resolved before completion of Phase 4 (Refer to NRC letter to NuScale of May 16, 2019 (ADAMS Accession No. ML19122A050)).

Note 2: Due to NuScale's design change and proposed schedule modification for submitting the revised supporting documentation, the Phase 5 milestone of 06/23/20 was delayed. This milestone was revised to reflect a Phase 5 milestone of 07/31/20 upon receipt of NuScale's final design change package (Refer to NRC letter to NuScale of May 1, 2020 (ADAMS Accession No. ML20112F455)).

Note 3: Phase 6 is complete and the final SER was issued (ADAMS Accession No. ML20023A318). The Phase 6 milestone was met 11 days ahead of the target date of September 8, 2020.

The NRC welcomes Public Involvement in Rulemaking, and invites the public to comment on proposed rules and policies, licensing actions, and draft technical documents. We announce public comment opportunities in the Federal Register and on our Documents for Comment page.