Pickering Nuclear Generating Station

The Commission is an independent administrative tribunal set up at arm’s length from government. It does not have ties to the nuclear industry. Use the following links to find documents related to Commission meetings or hearings:

• July 21, 2025: Notice of Public Hearing and Participant Funding – OPG’s Application to refurbish the Pickering Nuclear Generating Station and renew its Pickering Nuclear Generating Station and Waste Management Facility licences (PDF, 4 pages, 112 KB)
• February 25, 2025: Record of Decision: Application to extend the operation of the Pickering Nuclear Generating Station Units 5 to 8 until December 31, 2026 (PDF, 81 pages, 1.01 MB)
• August 8, 2023: Notice of Public Hearing and Participant Funding (Ontario Power Generation [OPG])  (PDF, 257 KB)
• December 12, 2022: Record of Decision – Application to Extend Deadline under PROL 48.01/2028 Licence Conditions 15.1 and 15.4 Related to the End of Commercial Operations for the Pickering Nuclear Generating Station (PDF, 549 KB)
• December 6, 2022: Record of Decision – Application for Acceptance of Ontario Power Generation’s Revised Consolidated Financial Guarantee (PDF, 337 KB)
• November 24, 2022: Record of Decision – Ontario Power Generation (Application to extend the deadline for filing documents related to the end of commercial operations for the Pickering Nuclear Generating Station) (PDF, 549 KB)
• November 1, 2022: Record of Decision –  Ontario Power Generation (Application for Acceptance of Ontario Power Generation’s Revised Consolidated Financial Guarantee) (PDF, 337 KB)

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The CNSC posts regulatory enforcement actions taken to protect the environment and the health, safety and security of all people in Canada. Use the following links to find out more about any orders or penalties that have been issued to this licensee:

• June 13, 2024: Letter to OPG
• May 31, 2023: Administrative monetary penalty issued
• July 13, 2021: Letter to OPG

View all regulatory actions

Licensees must report to the CNSC all events and incidents involving licensed activities that could impact the environment or the health, safety and security of people in Canada. Use the following links to find public disclosures made by this or any other licensee:

• Event reports (Source: Ontario Power Generation)
• Disclosure protocol (Source: Ontario Power Generation)

View all nuclear-related events

The CNSC recognizes the importance of engaging and building relationships with the public living near existing or proposed nuclear facilities and with other interested parties.

• CNSC staff present to the Durham Nuclear Health Committee annually on Regulatory Oversight Report results for Pickering and Darlington nuclear power plants (NPPs)
• December 12, 2016: CNSC staff present to Pickering City Council on the regulatory oversight for the Pickering Nuclear Generating Station and the upcoming relicensing process
• October and November 2016: CNSC staff make several presentations in the community on the regulatory oversight of the Pickering Nuclear Generating Station

CNSC regulations ensure that licensees communicate information effectively about activities at licensed facilities that are of interest to the public.

• Nuclear power | Operating licences – OPG

The CNSC uses information provided by licensees to create its own reports assessing the environmental effects of nuclear facilities or licensed activities:

• Environmental Monitoring: See the independent environmental monitoring results collected by the CNSC
  • Independent Environmental Monitoring Program: Pickering Nuclear Power Generating Site
• Environmental risk assessment: Email cnsc.info.ccsn@cnsc-ccsn.gc.ca to request a copy
• Federal, provincial and municipal monitoring programs: See the list of monitoring programs managed by other levels of government
• Radionuclide releases: View the Nuclear Power Plants dataset in Canada’s Open Government catalogue for information on releases from this facility

The CNSC oversees licensee emergency planning and works with other levels of government to ensure the health and safety of all people in Canada. The CNSC also conducts and reviews various health studies related to the production, possession or use of nuclear substances.

• Emergency Management Ontario
• OPG nuclear safety and emergency preparedness
  • Nuclear safety systems
  • Radiation safety
  • Nuclear security
• CNSC health studies on Canadian nuclear facilities: Consult relevant health studies on nuclear reactors regulated by the CNSC