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TransCanada Canadian Mainline Non-Critical Notices

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All information here is provided as a service and information is not guaranteed to be accurate. PipeRiv is not responsible for any incorrect information.

Type Posted Effective End Identifier Status Subject Response
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
Other 08/21/25 08/21/25 3374724148 TC Energy Computer System Issues - Mainline Resolved
Other 08/21/25 08/21/25 3374724147 TC Energy Computer System Issues - Mainline Update
Other 08/21/25 08/21/25 3374724146 TC Energy Computer System Issues - Mainline
Other 08/20/25 08/20/25 3374724144 September 2025 Mainline Fuel Ratios Available
Maintenance 08/14/25 08/15/25 3374724137 TC Energy Planned Maintenance August 5 - August 25, 2025
Other 08/11/25 08/11/25 3374724133 Mainline Posted Heat Value for July 2025
Maintenance 08/07/25 08/08/25 3374724130 TC Energy Planned Maintenance August 8 - August 18, 2025
Other 08/07/25 08/07/25 3374724128 Planned Computer System Maintenance - Measurement
Other 08/01/25 08/01/25 3374724120 PALS Transactions - July 2025
Maintenance 07/31/25 08/01/25 3374724118 TC Energy Planned Maintenance August 1 - August 11, 2025
Other 07/31/25 07/31/25 3374724111 Canadian Mainline Capacity Management Open Season
Open Season 07/31/25 07/31/25 3374724110 Canadian Mainline Capacity Management Open Season
Other 07/25/25 07/25/25 3374724085 Canadian Mainline STFT Open Season 2025/2026
Open Season 07/25/25 07/25/25 3374724084 Canadian Mainline STFT Open Season 2025/2026
Other 07/25/25 07/25/25 3374724083 Canadian Mainline NCOS and ECOS Offering
Open Season 07/25/25 07/25/25 3374724082 Canadian Mainline NCOS and ECOS Offering
IT Bid Rate 07/25/25 07/04/25 3374724079 Mainline Minimum IT Bid Floors
Maintenance 07/25/25 07/25/25 3374724076 TC Energy Planned Maintenance July 25 - August 4, 2025
Open Season 07/22/25 07/22/25 3374724068 Canadian Mainline Winter 2025/2026 Open Season for STFT
Other 07/22/25 07/22/25 3374724069 Canadian Mainline Winter 2025/2026 Open Season for STFT
Other 07/18/25 02/20/25 3374724065 August 2025 Mainline Fuel Ratios Available
Maintenance 07/17/25 07/18/25 3374724063 TC Energy Planned Maintenance July 18 - July 28, 2025
Other 07/17/25 07/17/25 3374724061 Planned Computer System Maintenance - Measurement
Other 07/15/25 07/15/25 3374724056 Canadian Mainline Winter 2025/2026 Open Season for STFT
Open Season 07/15/25 07/15/25 3374724055 Canadian Mainline Winter 2025/2026 Open Season for STFT
Maintenance 07/11/25 07/11/25 3374724053 TC Energy Planned Maintenance July 11 - July 21, 2025
Capacity Constraint 07/10/25 07/10/25 3374724052 Prairies Pipeline System - Maintenance Complete
Other 07/09/25 07/09/25 3374724051 Mainline Posted Heat Value for June 2025