Oklo Aurora custom combined license (INL): NRC combined licence (col) review for Oklo Power LLC (subsidiary of Oklo Inc.) — denied, 19.1 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 | Combined licence (COL) |
| Outcome | Denied |
| Applicant | Oklo Power LLC (subsidiary of Oklo Inc.) |
| Facility | Aurora (Idaho National Laboratory) |
| Docket | 52-049 |
| Submitted | 2020-03-11 |
| Docketed (accepted for review) | 2020-06-05 |
| NRC planned schedule | — |
| NRC target date | — |
| Final safety evaluation | — |
| Decision | 2022-01-06 |
| Review time (docketed → decision) | 19.1 mo |
| Submitted → decision | 21.9 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
Exclude from completed-review duration statistics (denial, not a decision on the merits). No new Oklo application found as of 2026-10-16: NRC pre-application page lists a 'Preapplication Readiness Assessment for Phase 1 of a Combined License Application' and a 'Pre-Phase 2 Combined License Application' audit, but no tendered application. Final safety evaluation: No safety evaluation issued (application denied). Decision: Denial letter dated January 6, 2022 (ML21357A034); denied without prejudice under 10 CFR 2.108 for failure to supply information.
Timeline
- 2020-03-11 — Application received: “The application for the combined license was received on March 11, 2020.” (source)
- 2020-06-05 — Accepted for review (docketed): “This action became effective on June 5, 2020.” (source)
- 2022-01-06 — Denied: “The NRC staff has denied the custom combined license application” (source)
The timeline is append-only: corrections are added as new entries. See the NNN Data License Terms for reuse of the event history.
Also tracked
NNN coverage
About Oklo
- Oklo's Groves reactor reaches first criticality in Texas 2026-08-06
- Oklo gets DOE startup authorization for Groves reactor 2026-07-24
- General Matter walks NRC through Paducah enrichment license filing 2026-10-11
- Nuclear power for data centers, explained: every deal tracked 2026-10-01
- Nature Outlook puts SMRs at center of AI power debate 2026-08-30
- HALEU, explained: the fuel advanced reactors need 2026-08-27
Related reviews
See all 75 reviews in the NRC Licensing Review Tracker →
Sources
- https://www.nrc.gov/facilities-safety/new-reactors/large-light-water-reactors/combined-license-applications-for-new-reactors/aurora-oklo
- https://www.federalregister.gov/d/2020-06939
- https://www.federalregister.gov/d/2020-12903
- https://www.federalregister.gov/d/2022-00339
- https://www.nrc.gov/docs/ML2135/ML21357A034.pdf