Northern Border Pipeline Company

First Revised Volume No. 1

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Effective Date: 03/22/2010, Docket: RP10-385-000, Status: Pending

Sixth Revised Sheet No. 0 Northern Border Pipeline Company: First Revised Volume No. 1

Sixth Revised Sheet No. 0

Superseding: Substitute Fifth Revised Sheet No. 0

FERC GAS TARIFF

First Revised Volume No. 1

of

NORTHERN BORDER PIPELINE COMPANY

Filed with

Federal Energy Regulatory Commission

Communications Concerning This Tariff

Should Be Addressed To:

Joan Collins

Manager, Tariffs and Compliance

Telephone: (832) 320-5651

Facsimile: (832) 320-6651

Electronic Mail Address: joan_collins@transcanada.com

TransCanada Northern Border Inc., its Operator

717 Texas Street

Houston TX 77002-2781