Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The NRC is modernizing nrc.gov with an updated design and improved navigation to enhance usability. We are committed to a smooth transition and will work to minimize any disruption. The site may be briefly unavailable at times during launch. Thank you for your patience.
On March 28, 2024, US SFR Owner, LLC (USO), a subsidiary of TerraPower, LLC (TerraPower), submitted a construction permit application for the proposed Natrium sodium fast reactor near Kemmerer, Wyoming. This project is supported by the DOE’s Advanced Reactor Demonstration Program. The NRC staff’s acceptance review of the application is ongoing. Learn More.
