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Customer Express Home   »  Capacity   »  Canadian Mainline System Printer-Friendly Page

Capacity

  • NGTL System
    • 2030 - 2032 NGTL Intra-Alberta FT-D Service Offering
    • 2030 - 2032 NGTL Empress and McNeill Borders FT-D1 Expansion Capacity Open Season
    • FT - Transfers
    • 2028 FT-R Service Offering
    • 2031 Segment 4 FT-R Service Offering
    • 2031 FT-R Service Offering
    • STFT - Summer
    • STFT - Winter
    • FT-D - Expansion Capacity - WGAT Open Season
    • Important Open Season Dates
    • Monthly Transfer Activity Report
  • Canadian Mainline System
    • FT - Existing
    • FT - Daily
    • FT - New
    • STFT - Summer
    • STFT - Winter
    • ST-SN Short Term-Short Notice
    • Canadian Mainline Capacity Management
  • Foothills System
    • FT - Daily
    • FT: Expansion Capacity
    • STFT - Daily
    • STFT - Summer
    • STFT - Winter
    • STFT - Existing Capacity
    • Important Open Season Dates
  • Great Lakes Pipeline Canada
    • FT - Existing
    • FT - Daily
  • Key Contacts
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Canadian Mainline System - Capacity

 

Open Seasons

Name

Status

Close Date
FT: Existing  Open August 13, 2026
FT: Daily Closed  
Firm Transportation: New Open August 13, 2026
Short Term Capacity: Summer Open  
Short Term Capacity: Winter Open July 14, 2026
ST-SN Short Term-Short Notice Closed  
Capacity Management Open Season Closed  
  • Canadian Mainline System Tariff
  • GST Procedures – For Export Points Only

Request for Service

Open Seasons
  • Contracts
  • Evaluating Facilities to Accommodate Flow Distribution Changes Within DDAs (114 KB, PDF)
  • Forecast Requirements for System Design Purposes for Distributor Delivery Areas (27 KB, PDF)
  • STFT Open Season PDF Bid Form
  • Electronic Bid Forms for All Open Seasons

Delivery and Receipt
  • Application for Service - Delivery (Electronic) (67 KB, PDF)
  • Application for Service - Delivery (Manual) (37 KB, PDF)
  • Application for Service - Receipt (Electronic) (120 KB, PDF)
  • Application for Service - Receipt (Manual) (99 KB, PDF)

Short Term Capacity Bid Floors

  • Short Term Capacity: Summer Bid Floors (91 KB, PDF)
  • Short Term Capacity: Summer Bid Floors (33 KB, XLS)
  • Short Term Capacity: Winter Bid Floors (91 KB, PDF)
  • Short Term Capacity: Winter Bid Floors (33 KB, XLS)

Related Information

  • Canadian Mainline System Current Rates
  • Mainline Operational Status Bulletin
  • CDE Report
  • Empress Flow-in Capacity

Customer Tools

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  • Conversion Tool

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TC Energy Office

Phone: 1.403.920.2000
Toll-free: 1.800.661.3805

 

Emergency Numbers

Canada: 1.888.982.7222
United States: 1.800.447.8066
Portland Natural Gas Transmission System(PNGTS): 1.800.830.9865
Columbia Gas Transmission, Crossroads Pipeline,
Hardy Storage Company & Millennium Pipeline: 1.800.835.7191
Columbia Gulf Transmission: 1.866.485.3427
Columbia Midstream: 1.855.511.4942
Mexico: 01.800.111.3333

Customer Express Home   »  Capacity   »  Canadian Mainline System

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