Northern Border Pipeline Company Critical Notices

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Type	Posted	Effective	End	Identifier	Status	Subject	Response
Maintenance	04/23/25	04/23/25	10/31/25	25934539		Construction and Maintenance Schedule - Updated (April 23, 2025)
Operational Flow Order	04/21/25	04/21/25	05/21/25	25934731		Low Inventory OFO Watch, Effective April 21, 2025
Computer System Status	04/17/25	04/17/25	04/24/25	25934727		TC eConnects – Update - Firewall Change implemented April 16, 2025
Operational Flow Order	04/11/25	04/11/25	05/11/25	25934010		Low Inventory OFO Watch, Effective April 11, 2025
Maintenance	04/09/25	04/09/25	10/31/25	25933356		Construction and Maintenance Schedule - Updated (April 9, 2025)
Computer System Status	04/08/25	04/08/25	05/08/25	25933352		Upcoming Firewall Change for TC eConnects
Maintenance	04/07/25	04/07/25	10/31/25	25933340		REMINDER: Zeeland Compressor Station Maintenance (CS8), Effective April 8, 2025
Maintenance	03/20/25	03/20/25	10/31/25	25932310		Construction and Maintenance Schedule - Updated (March 20, 2025)
Maintenance	03/11/25	03/11/25	10/31/25	25929814		Construction and Maintenance Schedule - Updated (March 11, 2025)
Maintenance	02/18/25	02/18/25	10/31/25	25927830		Construction and Maintenance Schedule - Updated (February 18, 2025)
Maintenance	02/14/25	02/14/25	10/31/25	25927821		Construction and Maintenance Schedule - Updated (February 14, 2025)
Maintenance	02/12/25	02/12/25	10/31/25	25927315		Construction and Maintenance Schedule (February 12, 2025)