Atomic Alchemy Versatile Isotope Production Reactor (VIPR) construction permit (Part 1): NRC construction permit review for Atomic Alchemy Inc., on behalf of Atomic Alchemy Operators LLC and VIPR Idaho LLC — withdrawn. Sourced dates and schedule.
Background: NRC reactor licensing process, explained · The ADVANCE Act, explained: what changed and where the NRC stands
Current state
| Type | Construction permit |
| Outcome | Withdrawn |
| Applicant | Atomic Alchemy Inc., on behalf of Atomic Alchemy Operators LLC and VIPR Idaho LLC |
| Facility | VIPR facility (INL desert site, Bingham County, Idaho) |
| Docket | — |
| Submitted | 2025-09-12 |
| Docketed (accepted for review) | — |
| NRC planned schedule | — |
| NRC target date | — |
| Final safety evaluation | — |
| Decision | — |
| Review time (docketed → decision) | — |
| Submitted → decision | — |
| 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
Withdrawn before docketing; exclude from duration statistics. Docketed: Never docketed (receipt notice only, then withdrawn). Final safety evaluation: Not reached. Decision: NRC granted withdrawal; the grant date is not stated. Withdrawal requested by letter dated December 19, 2025; FR notice of the grant dated January 26, 2026, published January 28, 2026.
Timeline
- 2025-09-12 — Application received: “The first part of the construction permit application was received on September 12, 2025.” (source)
The timeline is append-only: corrections are added as new entries. See the NNN Data License Terms for reuse of the event history.
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