Nuclear-related event reports

Public Disclosure

The CNSC requires its licensees to disclose to the public events and incidents involving its licensed activities that relate to the health, safety and security of Canadians and the environment.

Latest events:

• February 13, 2025: Reportable event at Bruce Power
• April 9, 2025: Reportable event at Ontario Power Generation
• January 18, 2025: Reportable event at the McArthur River mine
• Week of June 3, 2024: Reportable event at Ontario Power Generation
• April 9, 2024: Reportable event at the Port Hope Conversion Facility
• January 17, 2024: Reportable event at Chalk River Laboratories

Below is a list of nuclear industries, click on an industry in the list to view the events and incidents released to the public pertaining to that industry. Please visit licensees' websites for complete listing of their events and incidents, and to view their public disclosure protocols.

CNSC employees inspect a transport package containing nuclear material.

Event reports by sector:

• Academic and research
• Uranium mines and mills
• Uranium processing and fuel fabrication facilities
• Nuclear power plants
• Class IB nuclear facilities
• Class II nuclear facilities (These facilities are used in medicine, cancer therapy and research)
• Nuclear Medicine
• Nuclear substance processing facilities
• Radiation device licensees
• Research reactors
• Transport / in transit events
• Closed and decommissioned uranium mines and mills
• Waste management facilities

Related links

• Regulatory Actions
• CNSC Regulatory Oversight Reports
• Reports on Lost or Stolen Sealed Sources and Radiation Devices
• REGDOC-3.2.1, Public Information and Disclosure