Tracker · Pre-application
TerraPower & GE - Hitachi Natrium
The U.S. Nuclear Regulatory Commission (NRC) is currently engaged in pre-application activities interactions for the Natrium reactor. The Natrium design combines features from the previous GEH PRISM and TerraPower Traveling Wave designs. The proposed Natrium reactor is a 345 MWe pool type sodium fast reactor using HALEU metal fuel.
- Who
- Not stated
- Design
- Natrium
- Reactor type
- Liquid Metal Cooled Reactors
- Status
- Active on the NRC index
- What
- Not stated
- When
- Not stated
- Site
- Not stated on the NRC page in this snapshot.
- NRC page reviewed
- Tuesday, September 15, 2026
Dockets
Status timeline
Dates are printed as the NRC page prints them, including the actual (A) or target (T) mark.
The NRC page in this snapshot does not list a milestone table.
NRC activity table
| Product | Type | Reference | Status |
|---|---|---|---|
| Regulatory interpretation of the applicability of 10 CFR 50.10 to the construction of the Sodium Test and Fill Facility | White Paper | ML22154A564 | Feedback ProvidedML22174A425 |
| Quality Assurance Topical Report (QATR) | Topical Report | ML21005A015 | Feedback ProvidedML23213A199 |
| Advanced SFR Fuel Assembly Qualification Plan | White Paper | ML20316A038 | Feedback ProvidedML21099A081 |
| Advanced Fuel Qualification Methodology Report-Regulatory Guidance Development Report | White Paper | ML20209A155 | Feedback ProvidedML20310A278 |
| TerraPower-Type 1 Fuel Pin Qualification Plan | White Paper | ML21057A008 | Feedback ProvidedML21147A548ML21153A083 |
| TerraPower, LLC - Natrium Decoupling Strategy | White Paper | ML22035A331 | Cancelled |
| TerraPower, LLC, Submittal of Testing Programs | White Paper | ML22273A073 | Feedback ProvidedML23074A347 |
| TerraPower, LLC Topical Report, Regulatory Management of Natrium Nuclear Island and Energy Island Design Interfaces | Topical Report | ML22277A824 | Feedback ProvidedML24011A321 |
| Revised TerraPower, LLC Quality Assurance Topical Report, Revision 14 | Topical Report | ML22266A286 | Feedback ProvidedML23220A295ML23213A199 |
| TerraPower, LLC, Regulatory Gap Analysis Report | White Paper | ML22266A285 | Feedback ProvidedML23080A086 |
| Principal Design Criteria for the Natrium Advanced Reactor | Topical Report | ML23024A281 | Feedback ProvidedML24197A226 |
| Fuel and Control Assembly Qualification Plan | Topical Report | ML23025A409 | Feedback ProvidedML25083A296 |
| Nascent Thermal Hydraulic Model White Paper | White Paper | ML23080A013 | Feedback ProvidedML23229A541 |
| Plume Exposure Pathway Emergency Planning Zone Methodology, Revision 3 | Topical Report | ML23080A045 | Feedback ProvidedML25065A250 |
| An Analysis of the Potential Volcanic Hazards at the Proposed Natrium Site Near Kemmerer, Wyoming | Topical Report | ML23115A387 | Feedback ProvidedML24303A409 |
| Human Factors Engineering Program Plan and Methodologies | Topical Report | ML23116A226 | Feedback ProvidedML25085A268 |
| Human Factors Engineering (HFE) Concept of Operations | White Paper | ML23125A328 | Feedback ProvidedML25211A232 |
| Preliminary Consensus Codes and Standards | White Paper | ML23130A413 | Feedback ProvidedML23319A338 |
| Radiological Source Term Methodology Report, Revision 1 | Topical Report | ML23223A235 | Feedback Provided ML25211A271 |
| Design Basis Accident Methodology for In-Vessel Events without Radiological Release | Topical Report | ML23272A260 | Feedback ProvidedML25211A127 |
| Radiological Release Consequences Methodology | Topical Report | ML23311A139 | Feedback ProvidedML25211A267 |
| Reactor Stability Methodology | Topical Report | ML23334A239 | Feedback ProvidedML25105A066 |
| Partial Flow Blockage Methodology | Topical Report | ML24085A822 | Feedback Provided ML25251A084 |
| Design Basis Accident Methodology for Events With Release | Topical Report | ML24082A262 | Feedback ProvidedML25251A090 |
| Reactor Seismic Isolation System Qualification | Topical Report | ML24068A212 | ML25316A009 |
| Instrumentation and Control Architecture and Design Basis | Topical Report | ML24305A009 | Feedback ProvidedML25036A030 |
Related Federal Register notices
Included when a notice shares a docket printed on the NRC page, or when the notice title repeats the project or design name. Other NRC notices are left out.
No in-scope Federal Register notice is linked to this project.