Gentilly-2 nuclear facilities

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:

• March 2026: Hearing in writing: Application from Hydro-Québec to renew its power reactor decommissioning licence for the Gentilly-2 facilities for a period of 20 years. (All hearing documents)
• September 14, 2017: Record of Decision on the proposed financial guarantee for Hydro-Québec’s Gentilly-2 nuclear facility and radioactive waste management facilities
• June 22, 2016: Record of Decision to issue a power reactor decommissioning licence to Hydro-Québec for the Gentilly-2 facility

The Canadian Nuclear Safety Commission (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:

• December 5, 2022: Order issued to Hydro-Québec – Gentilly-2 nuclear facilities

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:

• No recent disclosures

View all nuclear-related events

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

• Public disclosure protocol – Gentilly-2 nuclear facilities (in French)

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: Gentilly site
• Environmental risk assessment: Email info@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.

• May 26, 2016: Organisation régionale de la sécurité civile de la Mauricie’s decision to discontinue the external nuclear emergency response plan at Gentilly-2 and cease distribution of KI pills (in French)
• CNSC health studies on Canadian nuclear facilities: Consult relevant health studies on nuclear reactors regulated by the CNSC