Event Reporting

Companies are required to notify the CER and the Transportation Safety Board of events.

This includes:

• incidents
• unauthorized activities
• operation and maintenance activities

Companies are to report these events and others through the online event reporting system, or OERS. A full list of events that are reportable using the online system are in the CER Event Reporting Guidelines. Activities the CER needs to be notified of are defined in regulations. Companies are expected to know their responsibilities and what is required of them.

Report an event

Public reporting

If you are a member of the public and want to report an event, contact the CER at 403-299-2773.

Regulations and guidance

Companies must refer to the CER’s Event Reporting Guidelines about what we expect and require when reporting events. Timelines for reporting an event vary, depending on what is being reported and its potential severity.

Related documents

• Event Reporting Guidelines
• Onshore Pipeline Regulations
• Processing Plant Regulations
• Canada Oil and Gas Drilling and Production Regulations
• Canada Oil and Gas Geophysical Operations Regulations
• Canada Oil and Gas Diving Regulations
• Canada Oil and Gas Installations Regulations
• Canadian Energy Regulator Pipeline Damage Prevention Regulations – Authorizations
• Canadian Energy Regulator Pipeline Damage Prevention Regulations – Obligations of Pipeline Companies

Improving reporting requirements

We share information on work that we do to improve requirements. The work below is on consultation we have done to revise the guidelines:

• Letter: Planned update and changes in Detailed Incident Report (DIR) submission requirements to the Canada Energy Regulator’s Online Event Reporting System (OERS)
• Letter: Changes to CER Online Event Reporting Guidelines
• Consultation: Results of consultation on the revisions to the CER Event Reporting Guidelines
• Revised document: Canada Energy Regulator Event Reporting Guidelines – Revised June 2020 [PDF 1134 KB]
• Letter: Letter dated 12 January 2018 and National Energy Board Event Reporting Guidelines
• Consultation: Results of consultation on the revisions to the NEB Event Reporting Guidelines
• Letter: Letter dated 15 December 2014 and National Energy Board Event Reporting Guidelines [PDF 794 KB]

Contact us

Get help or ask us a question. For help using the event reporting system or to ask us a question, email dlerssupport@cer-rec.gc.ca.

System unavailable? To report an event when the system is not available, contact the Transportation Safety Board at 1-819-997-7887 (TSB reporting hotline).