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TransCanada Canadian Mainline Non-Critical Notices

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Type Posted Effective End Identifier Status Subject Response
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
Capacity Constraint 07/09/25 07/09/25 3374724050 Eastern Triangle Pipeline System - Maintenance Complete
IT Bid Rate 07/04/25 07/04/25 3374724049 Mainline Minimum IT Bid Floors
Maintenance 07/03/25 07/04/25 3374724048 TC Energy Planned Maintenance July 4 - July 14, 2025
Capacity Constraint 07/03/25 07/03/25 3374724047 Eastern Triangle Pipeline System Maintenance Jul 8 to Jul 10
Other 07/03/25 07/03/25 3374724046 PALS Transactions - June 2025
Maintenance 06/26/25 06/27/25 3374724031 TC Energy Planned Maintenance June 27 - July 7, 2025
IT Bid Rate 06/26/25 06/26/25 3374724021 Mainline Minimum IT Bid Floors
Capacity Constraint 06/23/25 06/23/25 3374723992 Prairies Pipeline System Maintenance July 6 to July 11
Other 06/20/25 02/20/25 3374723976 July 2025 Mainline Fuel Ratios Available
IT Bid Rate 06/20/25 06/20/25 3374723971 Mainline Minimum IT Bid Floors
Maintenance 06/19/25 06/20/25 3374723968 TC Energy Planned Maintenance June 20 - June 30, 2025
IT Bid Rate 06/17/25 06/17/25 3374723951 Mainline Minimum IT Bid Floors
Maintenance 06/12/25 06/13/25 3374723923 TC Energy Planned Maintenance June 13 - June 23, 2025
Capacity Constraint 06/12/25 06/12/25 3374723919 Reminder: Prairies System Maintenance Jun 14 - Jun 26
IT Bid Rate 06/12/25 06/12/25 3374723916 Mainline Minimum IT Bid Floors
Other 06/06/25 06/06/25 3374723873 Mainline Posted Heat Value for May 2025
Maintenance 06/05/25 06/06/25 3374723868 TC Energy Planned Maintenance June 6 - June 16, 2025
Other 06/01/25 06/01/25 3374723824 PALS Transactions - May 2025
Maintenance 05/29/25 05/30/25 3374723829 TC Energy Planned Maintenance May 30 - June 9, 2025
Other 05/29/25 04/01/25 3374723823 PALS Transactions - April 2025
Capacity Constraint 05/27/25 05/27/25 3374723806 Prairies Pipeline System Maintenance June 14 to June 26
Maintenance 05/22/25 05/23/25 3374723802 TC Energy Planned Maintenance May 23 - June 2, 2025
Other 05/20/25 02/20/25 3374723800 June 2025 Mainline Fuel Ratios Available
Other 05/20/25 05/20/25 3374723798 my.TCCustomerExpress.com experiencing issues
Maintenance 05/15/25 05/26/25 3374723793 TC Energy Planned Maintenance May 16 - May 26, 2025
Maintenance 05/08/25 05/09/25 3374723757 TC Energy Planned Maintenance May 9 - May 19, 2025
IT Bid Rate 05/08/25 05/08/25 3374723753 Mainline Minimum IT Bid Floors
Other 05/07/25 05/07/25 3374723747 Mainline Posted Heat Value for April 2025