Alert

Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

Nuclear Test Reactor (NTR)

1.0 Site Identification

Type of Site:	Research and Test Reactor Facility
Location:	Sunol, CA
License No.:	R-33
Docket No.:	50-73
License Status:	SAFSTOR
Project Manager:	Chris Allen

2.0 Site Status Summary

The NTR license was renewed on June 29, 2023, in response to the GE-Hitachi application for license renewal dated November 19, 2020. The licensee informed NRC that it had permanently ceased operation of the NTR on December 21, 2023, NRC issued a possession-only license for NTR on February 28, 2024. On March 14, 2025, the license was transferred to NorthStar Vallecitos, LLC (NSV). The facility is being maintained in a storage condition.

The licensee plans to submit a decommissioning plan for the NTR as soon as possible.

3.0 Major Technical or Regulatory Issues

NONE

4.0 Estimated Date For Closure

Calendar year 2030

Page Last Reviewed/Updated Tuesday, March 18, 2025