Spotlight
Diablo Canyon - License Renewal Application
Current Application Submitted on 11/07/2023
Previous Application Withdrawn on 03/07/2018
On October 31, 2022, Pacific Gas and Electric sent in a letter to “Request to Resume Review of the Diablo Canyon Power Plant License Renewal Application or, Alternatively, for an Exemption from 10 CFR 2.109(b), Concerning a Timely Renewal Application.”
On this page:
- Application Information
- Current License Renewal Review Schedule
- Previous License Renewal Review Schedule
- Environmental Review
- Previous Safety Evaluation Report
- Public Involvement
Application Information:
- Current License Renewal Review Application
- Previous License Renewal Application
- Applicant's Previous Environmental Report
- Applicant's Previous Environmental Report, Amendment 1
- Applicant's Previous Environmental Report, Amendment 2
Current License Renewal Review Schedule
Milestones | Schedule Date | Actual Date |
|---|---|---|
Receive License Renewal Application (LRA) | 11/2023 | 11/07/2023 |
Publish Federal Register Notice (FRN) – LRA Availability | 11/2023 | 11/20/2023 |
Publish FRN – Docketing Acceptance/Rejection and Opportunity for Hearing | 12/2023 | 12/19/2023 |
Publish FRN – Notice of Intent to Prepare an Environmental Impact Statement and Conduct Scoping | 01/2024 | 01/24/2024 |
Public Meeting – Overview of License Renewal Process and Environmental Scoping | 02/2024 | 02/01/2024 |
Environmental Scoping Period Ends | 02/2024 | 02/23/2024 |
Deadline for Filing Hearing Requests and Petitions for Intervention | 03/2024 | 03/04/2024 |
Issue Draft Supplemental Environmental Impact Statement (SEIS) | 10/2024 | 10/25/2024 |
Public Meeting – Draft SEIS Meeting | 11/2024 | 11/14/2024 |
End of DSEIS Comment Period | 12/2024 | 12/16/2024 |
Issue Safety Evaluation Report (SER) | 06/2025 | 06/05/2025 |
Issue Final SEIS | 06/2025 | 06/20/2025 |
U.S. Environmental Protection Agency FRN Published – Availability of Final SEIS | 06/2025 | 06/27/2025 |
Decision – Director, NRR | 08/2025 |
Previous License Renewal Review Schedule*
Milestones | Schedule Date | Actual Date |
|---|---|---|
Receive license renewal application (LRA) | 11/24/09 | 11/24/09 |
Publish Federal Register Notice (FRN) - LRA availability | 12/11/09 | 12/11/09 |
Publish FRN - acceptance and opportunity for hearing | 01/21/10 | 01/21/10 |
Publish FRN - environmental scoping meeting | 01/21/10 | 01/27/10 |
Audit – Environmental | 04/19/10 | 04/19/10 |
Public Meeting - License Renewal Overview | 02/09/10 | 02/09/10 |
Public Meeting – Environmental Scoping | 03/03/10 | 03/03/10 |
Deadline for filing hearing requests and petitions for intervention | 03/22/10 | 03/22/10 |
Environmental scoping period ends | 04/12/10 | 04/12/10 |
Audit – Scoping & Screening Audit Methodology | 03/15/10 | 03/15/10 |
Audit – Aging Management Programs | 04/12/10 | 04/12/10 |
Issue safety evaluation report (SER) with open items | 12/10/10 | 01/10/11 |
Advisory Committee on Reactor Safeguards (ACRS) Subcommittee meeting | 02/2011 | 02/09/11 |
Issue SER | 06/2011 | 06/02/11 |
Publish Federal Register Notice – Environmental Scoping Meetings | 07/2015 | 07/01/15 |
Public Meeting – Environmental Scoping Meetings | 08/2015 | 08/05/15 |
Environmental Scoping Period Ends | 08/2015 | 08/31/15 |
Audit – Environmental | 09/2015 | 10/01/15 |
Audit – SAMA | 09/2015 | 09/23/15 |
Issue Supplemental Safety Evaluation Report (SER) | TBD | N/A* |
Issue Draft Supplemental Environmental Impact Statement (SEIS) | TBD | N/A* |
Publish EPA FRN – Draft SEIS Available for Comment | TBD | N/A* |
Public Meeting – Draft SEIS Meeting | TBD | N/A* |
End of Draft SEIS Comment Period | TBD | N/A* |
ACRS Subcommittee Meeting | TBD | N/A* |
ACRS Full Committee Meeting | TBD | N/A* |
Issue Final SEIS | TBD | N/A* |
Publish EPA FRN – Availability of Final SEIS | TBD | N/A* |
License Renewal decision | TBD | N/A* |
* previous application was withdrawn on March 7, 2018
Note: The preview review schedule was revised as described in the letters below:
- Withdrawal Letter (March 7, 2018)
- Revised Schedule Letter (July 18, 2016)
- Revised Schedule Letter (April 28, 2015)
- Revised Schedule Letter (May 31, 2011)
- Revised Schedule Letter (February 17, 2011)
- Revised Schedule Letter (October 10, 2010)
- Original Schedule Letter (January 8, 2010)
Environmental Review
NUREG-1437, Supplement 62, "Generic Environmental Impact Statement for License Renewal of Nuclear Plants: Regarding License Renewal of Diablo Canyon Nuclear Power Plant, Units 1 and 2, Final Report" was made publicly available on June 20, 2025. The final supplemental environmental impact statement documents the NRC staff’s review of the environmental impacts of license renewal for Diablo Canyon Units 1 and 2. The final supplemental environmental impact statement was prepared in accordance with 10 CFR Part 51 and documents the NRC staff’s analysis that considers and weighs the environmental effects of the proposed action (license renewal) and the environmental impacts of alternatives to the proposed action. It also includes the NRC staff’s recommendation regarding the proposed action: The NRC staff’s recommendation is that the adverse environmental impacts of license renewal for Diablo Canyon are not so great that preserving the option of license renewal for energy-planning decision-makers would be unreasonable.
Safety Evaluation Report
The NRC staff reviewed the Diablo Canyon Nuclear Power Plant, Units 1 and 2, license renewal application for compliance with the requirements of Title 10 of the Code of Federal Regulations, Part 54, "Requirements for Renewal of Operating Licenses for Nuclear Power Plants," and prepared a report to document its findings. The “Safety Evaluation Related to the License Renewal of Diablo Canyon Nuclear Power Plant, Units 1 and 2” was issued on June 5, 2025.
Public Involvement
The public was encouraged to participate in the reactor license renewal process through public meetings, and public comment periods on rules, renewal guidance, and other documents. The Reactor License Renewal Public Involvement page provides general information to help the public participate.
Date | Description |
|---|---|
11/20/2024 | In-person public meeting to receive comments on the draft supplemental environmental impact statement |
11/14/2024 | Virtual public meeting to receive comments on the draft supplemental environmental impact statement |
02/08/2024 | Meeting (In-person) to gather information necessary to prepare an environmental impact statement to evaluate the environmental impacts for the license renewal of the operating licenses for Diablo Canyon Nuclear Power Plant, Units 1 and 2. |
02/01/2024 | Meeting (Virtual) to gather information necessary to prepare an environmental impact statement to evaluate the environmental impacts for the license renewal of the operating licenses for Diablo Canyon Nuclear Power Plant, Units 1 and 2. |
08/05/2015
| Meeting to discuss license renewal status and conduct environmental scoping for Diablo Canyon Power Plant, Units 1 and 2. |
03/03/2010
| Meeting to discuss environmental scoping for Diablo Canyon Power Plant, Units 1 and 2. |
02/09/2010 | Meeting to discuss the license renewal process for Diablo Canyon Power Plant, Units 1 and 2. |
Page Last Reviewed/Updated Wednesday, January 21, 2026
Page Last Reviewed/Updated Wednesday, January 21, 2026