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NuScale US460 Standard Design Approval Application Review

image of NuScale US460 Standard Design Approval Application Review
Who:   NuScale Power, LLC (NuScale)
 
What:   Application for a Standard Design Approval for a small modular reactor (US460)
 
When:   By letter dated December 31, 2022 (electronically submitted on January 1, 2023), NuScale completed its staged SDA application submittal.
 
Website:   https://www.nuscalepower.com

On this page:

Project Overview

The staff of the U.S. Nuclear Regulatory Commission (NRC) is currently engaged in review activities of NuScale’s US460 Standard Design Approval (SDA) for a light water technology small modular reactor. (DOCKET NOs. 05200050 and 99902078)

Plant Characteristic Description
Reactor Type Light water small modular reactor
Power per module 77 MWe per nuclear power module (NPM)
Number of NPMs 6
US460 SDA Total Power 462 MWe

For additional detail, see the following related page:

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Project Status

The NuScale US 460 SDA application (SDAA) review status is displayed in the dashboard below. It allows the user to use various filters and visualizations in the Microsoft® Power BI® software platform to investigate the overall trends regarding:

  • Phase Review Progress
  • NuScale SDA Application Review Timeline
  • Status of Requests for Additional Information (RAIs)
  • Status of High Impact Technical Issues (HITIs)

As the review progresses, the dashboard will be updated to reflect new information.


 

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Project Details

The SDAA review phases:

Phase Phase Name End date
Phase A Advanced Safety Evaluation Report (ASER) without open items (draft completion date; internal NRC schedule) November 2024
Phase B ASER review (technical editing), Management concurrence February 2025*
Phase C Advisory Committee on Reactor Safeguards (ACRS) Review of ASER May 2025
Phase D Final Safety Evaluation Report (FSER) and Standard Design Approval (SDA) May 2025 **

*Phase B was completed on schedule with few open items that were addressed during Phase C.
**Standard Design Approval (SDA) was issued two months ahead of public milestone.

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Contacts

Contacts for the NuScale US460 SDA application review
Lead Project Manager Getachew Tesfaye
301-415-8013
Public Affairs Officer Scott Burnell
301-415-8204

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Page Last Reviewed/Updated Tuesday, June 17, 2025