Diablo Canyon Nuclear Power Plant Units 1 and 2 – License Renewal (2023 application)

Diablo Canyon Nuclear Power Plant Units 1 and 2 – License Renewal (2023 application): NRC licence renewal review for Pacific Gas and Electric Company — issued, 27.4 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

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 News Release 26-039: 'The NRC issued the renewed licenses after receiving documentation from PG&E of the required federal certifications under the Coastal Zone Management Act and the Clean Water Act.' NRC's own reviews (SE June 5, 2025; FSEIS June 20, 2025) finished ~19.5 months after submittal; the remaining ~9.5 months were external state certifications. The LR status table shows 'Application Received 11/24/09' (the first, withdrawn application) for this row; this record uses the 2023 application. The status page footnote also misstates the old application as 'submitted on November 7, 2018 and withdrawn ... March 7, 2018'. Units kept operating past their original expirations (Nov 2, 2024 / Aug 26, 2025) under the timely-renewal exemption granted March 2, 2023. Contested (hearing request March 2024); outcome not in fetched sources. NRC decision target: originally 2025-08, latest 2025-08. Schedule: Decision target 08/2025 in archived pages (May 2024, Nov 2024, June 2025) and current page; actual 04/02/2026 because licenses were issued only after PG&E documented CZMA and Clean Water Act certifications.

Timeline

• 2009-11-24 — Previous LRA received (withdrawn March 7, 2018). (source)
• 2018-03-07 — Previous LRA withdrawn. (source)
• 2023-03-02 — NRC grants exemption from 10 CFR 2.109(b) (timely renewal). (source)
• 2023-11-07 — Current application submitted. (source)
• 2023-12-19 — FR notice of acceptance and opportunity to request a hearing. (source)
• 2024-03-05 — Hearing request by San Luis Obispo Mothers for Peace, Friends of the Earth, Environmental Working Group (emailed Mar 4; ASLB established 2024-03-13). (source)
• 2025-06-05 — Safety evaluation issued. (source)
• 2025-06-05 — Final safety evaluation issued. (source)
• 2025-06-20 — Final SEIS issued. (source)
• 2026-04-02 — Renewed licenses DPR-80 and DPR-82 issued (to 2044/2045). (source)
• 2026-04-02 — Issued. (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

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Sources

1. https://www.nrc.gov/licensing-applications/power-reactor-licensing/diablo-canyon---license-renewal-application
2. https://www.nrc.gov/sites/default/files/cdn/doc-collection-news/2026/26-039.pdf
3. https://www.federalregister.gov/documents/2023/11/20/2023-25578
4. https://www.federalregister.gov/documents/2023/12/19/2023-27856
5. https://www.federalregister.gov/documents/2024/03/13/2024-05277
6. https://www.federalregister.gov/documents/2026/04/06/2026-06641
7. https://web.archive.org/web/20240613/https://www.nrc.gov/reactors/operating/licensing/renewal/applications/diablo-canyon.html
8. https://www.nrc.gov/licensing-applications/status-initial-license-renewal-applications-and-industry-initiatives