TRISO-X Fuel Fabrication Facility (TX-1) Part 70 special nuclear material licence (Category II HALEU TRISO fuel): NRC fuel-cycle licence review for TRISO-X, LLC — issued, 38.9 months from docketing to decision. Sourced dates and schedule.
Background: NRC reactor licensing process, explained · The ADVANCE Act, explained: what changed and where the NRC stands
Current state
| Type | Fuel-cycle licence |
| Outcome | Issued |
| Applicant | TRISO-X, LLC |
| Facility | TRISO-X Fuel Fabrication Facility, Horizon Center, Oak Ridge (Roane County), Tennessee |
| Docket | 70-7027 |
| Submitted | 2022-04-05 |
| Docketed (accepted for review) | 2022-11-18 |
| NRC planned schedule | 30 months |
| NRC target date | — |
| Final safety evaluation | — |
| Decision | 2026-02-13 |
| Review time (docketed → decision) | 38.9 mo |
| Submitted → decision | 46.3 mo |
| NRC-reported review duration | — |
| NRC-reported resources vs estimate | — |
Review time is measured in average months from the date the NRC docketed the application to the decision. The NRC's own reported durations may measure to the final safety evaluation instead.
Notes
NRC target decision: 2025-06 (original); 2026-05-29 (revised 2025-03-14) (month only). Phased submittal: SAR 2022-04-05 ahead of ER 2022-09-23 under an exemption; NRC facility page says SAR "received on April 12 and updated November 8, 2022". Major application revision (HALEU feedstock changed to uranyl nitrate, capacity increase) submitted Dec 30, 2024 / Jan 31, 2025; NRC schedule letter says 14 of 20 safety review areas "were paused for 10 months" and the environmental review "paused for 13 months" awaiting the revision, and six areas were paused over high-impact technical issues. Revised schedule exceeded the NEIMA 3-year generic milestone (November 17, 2025). No contested hearing (hearing notice 2023-02-03). Spans the ADVANCE Act: submitted and docketed before, decided after. Licence/permit: SNM-7007.
Timeline
- 2022-04-05 — Application received: “TRISO-X submitted the SAR on April 5, 2022 (ML22101A200) and supplemented the submittal via letters dated October 13, 2022 (ML22286A144) and November 4, 2022 (ML22308A251). ... The ER was submitted via letter dated September 23, 2022 (ML22266A269).” (source)
- 2022-11-18 — Accepted for review (docketed): “The application was accepted for a detailed technical review on November 18, 2022 (ML22320A110).” (source)
- 2026-02-13 — Issued: “SNM-7007 was issued on February 13, 2026.” (source)
The timeline is append-only: corrections are added as new entries. See the NNN Data License Terms for reuse of the event history.
NNN coverage
About TRISO-X
- NNN Daily Brief — July 19, 2026 2026-07-19
- NNN Daily Brief — July 18, 2026 2026-07-18
- Centrus and Antares sign multi-year HALEU supply contract 2026-09-18
- UK opens Xe-100 design assessment, first HTGR in GDA pipeline 2026-09-16
- HALEU, explained: the fuel advanced reactors need 2026-08-27
- The 7 nuclear stories that mattered this week 2026-08-08
Related reviews
- Project IKE Enrichment Facility Part 70 licence to construct and operate (centrifuge enrichment up to 8 wt% U-235) Under review · —
- Radiant R-50 Production Site Part 70 greater-than-critical-mass SNM licence (microreactor fueling building) Under review · —
- Paducah Laser Enrichment Facility (PLEF) Part 70 licence to construct and operate (laser enrichment up to 8 wt% U-235) Under review · —
- Idaho State University SNM-1373 materials licence renewal (greater-than-critical-mass SNM for education/research) Issued · 11.5 mo
- Oregon State University SNM-2013 materials licence renewal (research on used RTR fuel rods) Issued · 12.5 mo
- Metropolis Works uranium conversion facility SUB-526 40-year source material licence renewal Issued · 34.7 mo
- Columbia Fuel Fabrication Facility SNM-1107 40-year licence renewal Issued · 92.4 mo
See all 75 reviews in the NRC Licensing Review Tracker →
Sources
- https://www.federalregister.gov/documents/2026/03/16/2026-05086/triso-x-llc-special-nuclear-material-license-for-the-triso-x-fuel-fabrication-facility
- https://www.federalregister.gov/documents/2023/02/03/2023-02335/triso-x-llc-trisox-special-nuclear-material-license
- https://www.nrc.gov/docs/ML2232/ML22320A110.pdf
- https://www.nrc.gov/docs/ML2330/ML23305A193.pdf
- https://www.nrc.gov/sites/default/files/cdn/doc-collection-news/2026/26-019.pdf
- https://www.nrc.gov/facilities-safety/fuel-cycle-facilities/new-fuel-cycle-facility-licensing
- https://www.nrc.gov/facilities-safety/facility-finder/fc/triso-x