Project Background

On December 19, 2019, Enbridge Pipelines Inc. filed an application for a new service and tolling framework for its Canadian Mainline pipeline system. If approved, the new framework will allow shippers to sign long-term contracts for priority access to 90% of the capacity on the pipeline system. Currently, Enbridge allocates capacity on the Mainline on an uncommitted basis, using a monthly nomination system. Enbridge intends to reserve 10% of the available capacity of the Mainline for shipments of spot or uncommitted volumes. Any contracted capacity that is not used for contract shipments would be available for spot shipments. The applied-for service offering, which also includes requests for various other related approvals, would replace the current service and tolling settlement, which is due to expire on 30 June 2021. In its application, Enbridge indicated that the new contracts would go into effect only once the Line 3 Replacement Program and its additional 370,000 barrels per day of capacity comes into service.

Project Map

This map provides an overview of the project.

Enbridge Mainline map

View larger PDF version [PDF 1088 KB]

Enbridge Mainline

You can see the Enbridge Mainline and all CER-regulated pipelines on the CER’s Interactive Pipeline Map. This interactive map shows more detailed location information, the products carried by each pipeline, the operating status and more. You can also see a map on Enbridge’s website.

Contact Information

For process-related inquiries, please contact

Regulatory Officers
Canada Energy Regulator
Telephone (toll free): 1-800-899-1265
Facsimile: 403-292-5503
Facsimile (toll free): 1-877-288-8803

For media inquiries, please contact

Ruth Anne Beck
Communications Officer

Canada Energy Regulator
Telephone: 403-483-1395
Telephone (toll free): 1-800-899-1265
Facsimile: 403-299-3302
Facsimile (toll free): 1-877-288-8803

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