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
• Project Status
• Project Details
• Contacts

Project Overview

The staff of the U.S. Nuclear Regulatory Commission (NRC) completed in May of 2025 review activities of NuScale’s US460 Standard Design Approval (SDA) for a light water technology small modular reactor. (DOCKET NOs. 05200050 and 99902078)

For additional detail, see the following related page:

• NuScale US460 Standard Design Approval Documents
• NuScale Topical Reports

Project Status

The NuScale US460 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)

The dashboard reflects the final information.

Project Details

The SDAA review phases:

*Phase B was completed on schedule with few open items that were addressed during Phase C.
**Standard Design Approval (SDA) was issued in May of 2025 - two months ahead of schedule.

Contacts