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Trans Québec & Maritimes Pipeline (TQM)

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The Trans Québec & Maritimes Pipeline (TQM) was founded in 1980 and is owned equally by subsidiaries of two major Canadian companies in the natural gas industry, Énergir and TC Energy. TQM’s system is operated by TC Energy and supplies natural gas through Énergir to residential, commercial and industrial customers in Québec, as well as downstream customers in the Northeastern United States and Atlantic Canada.

The 574-kilometre (km) system includes 31 delivery points and three compressor stations, with another station currently under construction. The system transports natural gas from an interconnect with TC Energy’s Canadian Mainline at Les Cèdres, Québec to a point near Québec City, in the municipality of Lévis on the south shore of the St. Lawrence River. Additionally, the system extends from Terrebonne, north of Montreal, to East Hereford, Québec on the border with New Hampshire, where it interconnects with the Portland Natural Gas Transmission System. Starting in July 2022, TQM will integrate an existing pipeline into its system, from an interconnection with TC Energy’s Mainline in Sabrevois, Quebec to Shefford, Québec where it will interconnect with the existing TQM pipeline.

The system is also interconnected with Énergir’s distribution system and provides approximately 60 per cent of the natural gas supply to Énergir. TQM crosses the territory of 75 municipalities and the property of approximately 1,700 landowners.

TQM is regulated by the Canada Energy Regulator (CER) with regard to its transportation tolls and its facilities.

For commercial information, visit TQM Pipeline.

574 km (357 miles) in length

Carries natural gas from Ontario, and PNGTS System in the Northeast US to Quebec

Delivers fuel for business, industry and customers in Quebec, Canada

Documents and maps

The Trans Québec & Maritimes Pipeline (TQM) safely supplies natural gas to business and customers in the province of Quebec.


How are we regulated?

The Trans Québec & Maritimes Pipeline (TQM) is governed according to regulations outlined by the Canada Energy Regulator (CER).

Canada Energy Regulator (CER)
Local 1-403-292-4800 1-403-292-5503
Toll-Free 1-800-899-1265 1-877-288-8803


Ways to reach us

TC Energy is committed to notifying affected landowners, towns, communities and local, state and federal governments and agencies involved in the Project. If you have any questions about the Project, please reach out to us via the contact information below.

TQM Pipeline

Gazoduc Trans Québec & Maritimes Inc. (TQM)
C/O TransCanada Pipelines Limited
450 – 1 St. SW
Calgary, Alberta
T2P 5H1

1-450-462-5300 1-800-661-3805 
1-888-810-8800 Toll-Free (North America) 1-450-462-5388


Emergency Response
Our commitment to the safety of our people, pipelines and facilities is unwavering, visit our Contact page for our complete list of emergency numbers.

Landowner Helpline
A key component in maintaining the integrity of our facilities is input from all stakeholders: Indigenous communities, landowners and governments. If you have questions or concerns, please let us know.

Head Office
450 – 1 St. SW
Calgary, Alberta
T2P 5H1


Media Relations
TC Energy welcomes enquiries from media. Please direct questions to:
1-800-608-7859 Toll-free (North America)

Investor Relations
We welcome inquiries from analysts, shareholders and prospective shareholders at:
1-800-361-6522 Toll-free (North America)