TransCanada Canadian Mainline Non-Critical Notices

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Type Posted Effective End Identifier Status Subject Response
Open Season 12/23/25 12/23/25 3374724495 Canadian Mainline ST-SN Open Season 2025/2026
Other 12/23/25 12/23/25 3374724493 Canadian Mainline ST-SN Open Season 2025/2026
Maintenance 12/23/25 12/26/25 3374724494 TC Energy Planned Maintenance Dec 26, 2025 - Jan 5, 2026
Other 12/22/25 12/22/25 3374724491 Canadian Mainline STFT Open Season 2025/2026
Open Season 12/22/25 12/22/25 3374724490 Canadian Mainline STFT Open Season 2025/2026
Other 12/19/25 11/20/25 3374724489 January 2026 Mainline Fuel Ratios Available
Other 12/19/25 12/19/25 3374724487 Canadian Mainline STFT Open Season 2025/2026
Open Season 12/19/25 12/19/25 3374724486 Canadian Mainline STFT Open Season 2025/2026
Maintenance 12/19/25 12/19/25 3374724485 TC Energy Planned Maintenance Dec 19-29, 2025
IT Bid Rate 12/16/25 12/16/25 3374724480 Mainline Minimum IT Bid Floors
Maintenance 12/11/25 12/12/25 3374724475 TC Energy Planned Maintenance Dec 12-22, 2025
Other 12/11/25 12/11/25 3374724474 Canadian Mainline STFT Open Season 2025/2026
Open Season 12/11/25 12/11/25 3374724473 Canadian Mainline STFT Open Season 2025/2026
Other 12/09/25 12/09/25 3374724471 Mainline Posted Heat Value for November 2025
Other 12/09/25 12/08/25 3374724470 PALS Transactions - November 2025
IT Bid Rate 12/08/25 12/08/25 3374724469 Mainline Minimum IT Bid Floors
Maintenance 12/04/25 12/05/25 3374724451 TC Energy Planned Maintenance Dec 5-15, 2025
Other 12/03/25 12/03/25 3374724442 Canadian Mainline STFT Open Season 2025/2026
Open Season 12/03/25 12/03/25 3374724441 Canadian Mainline STFT Open Season 2025/2026
Other 12/01/25 12/01/25 3374724430 Planned Computer System Maintenance - Measurement
IT Bid Rate 12/01/25 11/25/25 3374724427 Mainline Minimum IT Bid Floors
Capacity Constraint 11/28/25 11/28/25 3374724422 Eastern Triangle Pipeline System - Maintenance
Maintenance 11/27/25 11/28/25 3374724423 TC Energy Planned Maintenance Nov 28- Dec 8, 2025
IT Bid Rate 11/25/25 11/25/25 3374724404 Mainline Minimum IT Bid Floors
Other 11/24/25 11/24/25 3374724402 Canadian Mainline STFT Open Season 2025/2026
Open Season 11/24/25 11/24/25 3374724401 Canadian Mainline STFT Open Season 2025/2026
Maintenance 11/21/25 11/21/25 3374724399 TC Energy Planned Maintenance Nov 21- Dec 1, 2025
Other 11/20/25 11/20/25 3374724396 December 2025 Mainline Fuel Ratios Available
Maintenance 11/13/25 11/14/25 3374724388 TC Energy Planned Maintenance Nov 14- Nov 24, 2025
Other 11/13/25 11/13/25 3374724384 Planned Computer System Maintenance - Measurement
Maintenance 11/07/25 11/08/25 3374724340 UPDATED: TC Energy Planned Maintenance Nov 7- Nov 17, 2025
Other 11/07/25 10/07/25 3374724335 Mainline Posted Heat Value for October 2025
IT Bid Rate 11/07/25 11/07/25 3374724331 Mainline Minimum IT Bid Floors
Maintenance 11/06/25 11/07/25 3374724330 TC Energy Planned Maintenance Nov 7- Nov 17, 2025
Capacity Constraint 11/06/25 07/09/25 3374724329 Eastern Triangle Pipeline System - Maintenance
Other 11/03/25 11/03/25 3374724327 PALS Transactions - October 2025
Maintenance 10/30/25 10/31/25 3374724322 TC Energy Planned Maintenance Oct 31 - Nov 10, 2025
IT Bid Rate 10/29/25 10/29/25 3374724317 Mainline Minimum IT Bid Floors
Other 10/24/25 10/24/25 3374724312 Updated: Planned Computer System Maintenance - Measurement
Maintenance 10/24/25 10/24/25 3374724310 UPDATED: TC Energy Planned Maintenance Oct 24 - Nov 3, 2025
Other 10/23/25 10/23/25 3374724307 Planned Computer System Maintenance - Measurement
Event 10/23/25 10/23/25 3374724306 2026 Mainline Abandonment Surcharges and Rate Riders
Other 10/20/25 10/20/25 3374724296 November 2025 Mainline Fuel Ratios Available
Maintenance 10/18/25 10/18/25 3374724281 UPDATED: TC Energy Planned Maintenance Oct 17 - Oct 27, 2025
Maintenance 10/16/25 10/17/25 3374724274 TC Energy Planned Maintenance Oct 17 - Oct 27, 2025
Other 10/16/25 10/16/25 3374724273 Update: Station 2 Maintenance Work October to November
Maintenance 10/09/25 10/10/25 3374724251 TC Energy Planned Maintenance Oct 10 - Oct 20, 2025
Other 10/07/25 10/07/25 3374724246 Update: Station 2 Maintenance Work October to November
Other 10/07/25 10/07/25 3374724243 Mainline Posted Heat Value for September 2025
Other 10/06/25 10/06/25 3374724238 Contracting Timelines for November 1, 2025