Northern Border Pipeline Company

First Revised Volume No. 1

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Effective Date: 01/16/2008, Docket: RP08-128-000, Status: Effective

Fifth Revised Sheet No. 260 Fifth Revised Sheet No. 260 : Effective

Superseding: Substitute Fourth Revised Sheet No. 260

GENERAL TERMS AND CONDITIONS

10. NOMINATIONS/CONFIRMATIONS/SCHEDULING/INTERRUPTION OF SERVICE

(Continued)

10.6 Interruption of Service (Continued)

10.62 Partial Curtailment of Service (Continued)

Once scheduled, Shippers with secondary capacity

scheduling rights at a given point shall be

considered to have an equal curtailment allocation

priority with Shippers with primary capacity

scheduling rights at such point.

10.63 Service Reduction Due to an Operational Flow Order

(a) Circumstances Warranting Issuance of an OFO

Company shall have the right to issue an OFO,

requiring actions by Shippers in order 1) to

alleviate conditions that threaten the integrity

of Company's system, 2) to maintain pipeline

operations at pressures required to provide

efficient and reliable transportation service,

3) to have adequate system line pack, and 4) to

maintain service to all firm Shippers.

Specific conditions that could prompt Company

issuance of an OFO include:

(i) The inability of Company to receive

scheduled gas at a Point of Receipt or to

deliver scheduled gas at a Point of

Delivery due to an operational condition

on the associated interconnected system.