Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

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Effective Date: 10/06/2003, Docket: RP04- 23-000, Status: Effective

Original Sheet No. 159 Original Sheet No. 159 : Effective







GTN shall have the right to curtail, interrupt, or discontinue

Transportation Service on any portion of its system at any time for

reasons of Force Majeure or when capacity, supply, or operating

conditions so require or it is necessary or desirable to make

modifications, repairs, or operating changes to its system. GTN

shall provide notice of such occurrences as is reasonable under the



Capacity may become constrained at individual receipt points, delivery

points or on segments of the pipeline. GTN shall exercise this

curtailment provision only at the point(s) or segment(s) of the

pipeline affected by the constraint. When capacity is constrained or

otherwise insufficient to serve all the transportation requirements

which are scheduled to receive service, GTN shall curtail

Authorized Imbalance Service; followed by Interruptible Service,

and finally Firm service.


Curtailment of Authorized Imbalance Service, if necessary, shall be

performed in the opposite order of scheduling as set forth in

Section 19.3 of this Tariff.


Curtailment of Interruptible Service, if necessary, will be performed

in the opposite order of scheduling set forth in Section 19.2 of this



Curtailment of firm service if necessary, will be performed pro rata

based on the MDQ across the contracts scheduled to use the capacity at

the applicable receipt points, delivery point(s)or mainline segment(s)

of pipeline.