TransCanada Canadian Mainline Non-Critical Notices

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Type Posted Effective End Identifier Status Subject Response
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
Other 10/03/25 10/03/25 3374724223 Mainline Renewal Notice Reminder and Reference Sheet
Maintenance 10/02/25 10/03/25 3374724216 TC Energy Planned Maintenance Oct 3 - Oct 13, 2025
Other 10/02/25 10/02/25 3374724210 Mainline Contracting Early Revert Enhancement
Other 10/01/25 10/01/25 3374724206 PALS Transactions - September 2025
IT Bid Rate 09/29/25 09/29/25 3374724199 Mainline Minimum IT Bid Floors
Other 09/29/25 09/29/25 3374724198 Update: Station 2 Maintenance Work September to November
Maintenance 09/25/25 09/26/25 3374724194 TC Energy Planned Maintenance Sept 26 - Oct 6, 2025
Other 09/23/25 09/23/25 3374724188 Reminder: Station 2 Maintenance Work - Sept to Nov
Other 09/23/25 09/23/25 3374724187 Canadian Mainline STFT Open Season 2025/2026
Open Season 09/23/25 09/23/25 3374724186 Canadian Mainline STFT Open Season 2025/2026
IT Bid Rate 09/23/25 09/23/25 3374724183 Mainline Minimum IT Bid Floors
Other 09/19/25 09/20/25 3374724182 October 2025 Mainline Fuel Ratios Available
Maintenance 09/18/25 09/19/25 3374724179 TC Energy Planned Maintenance Sept 19 - Sept 29, 2025
Other 09/15/25 09/15/25 3374724177 Canadian Mainline STFT Open Season 2025/2026
Open Season 09/15/25 09/15/25 3374724176 Canadian Mainline STFT Open Season 2025/2026
Maintenance 09/11/25 09/12/25 3374724175 TC Energy Planned Maintenance Sept 12 - Sept 22, 2025
IT Bid Rate 09/10/25 09/10/25 3374724174 Mainline Minimum IT Bid Floors
Other 09/09/25 09/09/25 3374724173 Canadian Mainline ECOS Commencement
Open Season 09/09/25 09/09/25 3374724172 Canadian Mainline ECOS Commencement
Capacity Constraint 09/09/25 09/09/25 3374724171 TQM/ML Pipeline System Maintenance Sept 5 – Sept 9 Update
Other 09/05/25 09/05/25 3374724163 Mainline Posted Heat Value for August 2025
Maintenance 09/05/25 09/05/25 3374724161 TC Energy Planned Maintenance Sept 05 - Sept 15, 2025
Capacity Constraint 09/03/25 09/03/25 3374724160 TQM Pipeline System Unplanned Maintenance - Sept 5 - Sept 9
Other 09/02/25 09/01/25 3374724158 PALS Transactions - August 2025
Maintenance 08/28/25 08/29/25 3374724156 TC Energy Planned Maintenance August 29 - September 8, 2025
IT Bid Rate 08/25/25 08/25/25 3374724152 Mainline Minimum IT Bid Floors
Maintenance 08/21/25 08/22/25 3374724150 TC Energy Planned Maintenance August 22 - September 1, 2025
Other 08/21/25 08/21/25 3374724149 Station 2 Maintenance Work - September to November