Effective November 2, 2026, industry and service contractors must submit select compliance-related operational notifications through OneStop. These notifications (see list below) will no longer be accepted by email, DDS, or other legacy submission methods. This change is part of our ongoing commitment to modernize and streamline our regulatory technology and processes.
There are no changes to compliance requirements, reporting obligations, enforcement activities, reporting timelines, or the rigour of compliance oversight.
Notification Types
The following operational notifications are in OneStop:
- Abandonment Notifications
- Biodegradation Notifications
- Ceased Operations Notifications
- Critical Sour Review Meeting Notifications
- Drilling Commencement Notifications
- Emergency Response Plan Licence Transfer Notifications
- Emergency Response Plan Exercise Notifications
- Flaring and Venting Notifications
- Hydraulic Fracturing Notifications
- Insolvency Proceedings Notifications
- Pipeline Drilling Waste Pre-Disposal Notifications
- Use Of AWSS and BwSF Storage Systems Notifications
- Well Drilling Waste Pre-Disposal Notifications
- Water Act Codes of Practice Notifications
- Hydrostatic Testing
- Outfall Structure
- Pipeline Crossing
- Watercourse Crossing
Notifications and submissions not listed above remain in their current systems.
Questions:
Why did the AER move operational notifications to OneStop?
Moving operational notifications to OneStop enables a more modern and consistent submission process and improved data management for users. It also supports the AER in efficient, consistent, and risk-informed decision making.
How do service contractors access OneStop to submit operational notifications?
- Contractors who wish to operate under their own business associate (BA) code must obtain a BA code through Petrinex. Once a BA code has been assigned, email DDSAdministrator@aer.ca to request company master administrator access for that BA code.
- Contractors may operate under a licensee's BA code. To do this, the licensee's company master administrator must first create a DDS account for the contractor and assign the appropriate roles and permissions within the system before any submissions can be made. Refer to the DDS User Guide for instructions on creating user accounts, assigning roles, and managing access. Contractors who operate under a licensee's BA code must ensure that the "Acting As" selection in the top-right corner of OneStop is set to the appropriate licensee before submitting notifications.
What will happen to operational notifications submitted before November 2?
Operational notifications submitted before November 2, 2026, will continue through their existing process.
Is historical notification information still available?
Yes. You can access historical information for operational notifications previously submitted through DDS, email, or OneStop by emailing inquiries@aer.ca.
Where do I submit EPEA registration for hydrostatic testing?
Use the form in OneStop to submit the following for pipeline hydrostatic testing:
- A notification under the Water Act Code of Practice to temporarily divert water for testing.
- A registration under the Environmental Protection and Enhancement Act (EPEA) Code of Practice to release test water from a petroleum liquid or gas pipeline.
The AER will review the form and, if an EPEA registration is triggered (i.e., >1000 cubic metres of water will be released), will respond to the operator via email.
Are any AER rules or directives changing?
Yes. The AER has made administrative amendments to select rules and directives to support digital submission of non-emergency operational notifications through OneStop. These amendments will modernize submission methods while maintaining existing regulatory intent, obligations, and reporting timelines.
Will these changes affect the Compliance Dashboard?
No. There are no changes to the Compliance Dashboard.
Will there be user training and support for these changes?
Yes. Virtual user information sessions were offered in October before go-live, and on-demand support is available through the OneStop Help Centre.
For general inquiries, industry can email inquiries@aer.ca or call 403-297-8311.
How do I report a OneStop error or bug?
Use the new OneStop Error Reporting Form to report OneStop system errors. The form captures the error details, which are tracked so that errors can be addressed as quickly as possible. Support staff work to resolve issues promptly; however, some cases may take up to seven business days to address.
