TransCanada Canadian Mainline Non-Critical Notices

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Type Posted Effective End Identifier Status Subject Response
Maintenance 07/16/26 07/17/26 3374724835 TC Energy Planned Maintenance July 17-27, 2026
Other 07/15/26 07/15/26 3374724829 Canadian Mainline Winter 2026/2027 Open Season for STFT
Open Season 07/15/26 07/15/26 3374724828 Canadian Mainline Winter 2026/2027 Open Season for STFT
Other 07/10/26 07/10/26 3374724823 Mainline Posted Heat Value for June 2026
Other 07/10/26 07/10/26 3374724819 Canadian Mainline Winter 2026/2027 Open Season for STFT
Open Season 07/10/26 07/10/26 3374724818 Canadian Mainline Winter 2026/2027 Open Season for STFT
Maintenance 07/09/26 07/10/26 3374724815 TC Energy Planned Maintenance July 10-20, 2026
Capacity Constraint 07/07/26 07/07/26 3374724813 Update - Station 2 Maintenance Work: Complete
IT Bid Rate 07/06/26 07/06/26 3374724812 Mainline Minimum IT Bid Floors
Maintenance 07/03/26 07/03/26 3374724810 TC Energy Planned Maintenance July 3-13, 2026
Other 07/02/26 07/02/26 3374724809 Station 41 Maintenance Work
Other 07/02/26 07/02/26 3374724808 Canadian Mainline NCOS and ECOS Offerings
Open Season 07/02/26 07/02/26 3374724807 Canadian Mainline NCOS and ECOS Offerings
Other 07/02/26 07/02/26 3374724806 PALS Transactions - June 2026
Capacity Constraint 06/27/26 06/27/26 3374724801 Prairies Pipeline System - Unplanned Maintenance Update
Maintenance 06/27/26 06/27/26 3374724800 UPDATED: TC Energy Planned Maintenance June 27-July 6, 2026
Maintenance 06/25/26 06/26/26 3374724798 TC Energy Planned Maintenance June 26-July 6, 2026
Other 06/23/26 06/23/26 3374724791 Update - Station 2 Maintenance Work
Other 06/20/26 06/20/26 3374724788 July 2026 Mainline Fuel Ratios Available
Capacity Constraint 06/19/26 06/20/26 3374724787 Prairies Pipeline System - Unplanned Maintenance
Maintenance 06/19/26 06/20/26 3374724786 UPDATED: TC Energy Planned Maintenance June 20-June 29, 2026
Maintenance 06/18/26 06/19/26 3374724783 TC Energy Planned Maintenance June 19-June 29, 2026
Other 06/15/26 06/15/26 3374724775 Canadian Mainline Summer 2026 STFT Open Season
Open Season 06/15/26 06/15/26 3374724774 Canadian Mainline Summer 2026 STFT Open Season
Maintenance 06/11/26 06/12/26 3374724770 TC Energy Planned Maintenance June 12-June 22, 2026
IT Bid Rate 06/10/26 06/10/26 3374724768 Mainline Minimum IT Bid Floors
Other 06/09/26 06/09/26 3374724767 Mainline Posted Heat Value for May 2026
Other 06/08/26 06/08/26 3374724766 Reminder - Station 2 Maintenance Work - May to June
Maintenance 06/04/26 06/05/26 3374724764 TC Energy Planned Maintenance June 5-June 15, 2026
IT Bid Rate 06/01/26 06/02/26 3374724762 Mainline Minimum IT Bid Floors
Other 06/01/26 06/01/26 3374724761 PALS Transactions - May 2026
Other 05/29/26 05/29/26 3374724759 Canadian Mainline Summer 2026 STFT Open Season
Open Season 05/29/26 05/29/26 3374724758 Canadian Mainline Summer 2026 STFT Open Season
Maintenance 05/28/26 05/29/26 3374724757 TC Energy Planned Maintenance May 29-June 8, 2026
Other 05/27/26 05/27/26 3374724750 Computer System Issues - Resolved
Other 05/27/26 05/27/26 3374724745 Computer System Issues - Measurement
Other 05/26/26 05/26/26 3374724743 Canadian Mainline Summer 2026 STFT Open Season
Open Season 05/26/26 05/26/26 3374724742 Canadian Mainline Summer 2026 STFT Open Season
Other 05/25/26 05/25/26 3374724741 Upcoming TCPL Mainline Existing & New Capacity Open Seasons
Open Season 05/25/26 05/25/26 3374724740 Upcoming TCPL Mainline Existing & New Capacity Open Seasons
Maintenance 05/21/26 05/22/26 3374724738 TC Energy Planned Maintenance May 22-June 1, 2026
Other 05/20/26 03/20/27 3374724733 June 2026 Mainline Fuel Ratios Available
IT Bid Rate 05/19/26 05/19/26 3374724731 Mainline Minimum IT Bid Floors
Other 05/19/26 05/19/26 3374724729 Canadian Mainline Summer 2026 STFT Open Season
Open Season 05/19/26 05/19/26 3374724728 Canadian Mainline Summer 2026 STFT Open Season
Maintenance 05/14/26 05/15/26 3374724726 TC Energy Planned Maintenance May 15-May 25, 2026
Other 05/11/26 05/11/26 3374724725 Mainline Posted Heat Value for April 2026
Maintenance 05/07/26 05/08/26 3374724723 TC Energy Planned Maintenance May 8-May 18, 2026
Other 05/04/26 05/04/26 3374724722 PALS Transactions - April 2026
Maintenance 04/30/26 05/01/26 3374724720 TC Energy Planned Maintenance May 1-May 11, 2026