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. 142 Original Sheet No. 142 : Effective

TRANSPORTATION GENERAL TERMS AND CONDITIONS

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19. PRIORITY OF SERVICE, SCHEDULING, AND NOMINATIONS

19.1 Priority of Firm Service

Firm service shall have the highest priority on GTN's

System. From time to time, GTN may not have sufficient

capacity to accommodate all nominations for firm service through

a given segment of its pipeline, Receipt Point, or Delivery Point.

In that event, GTN shall schedule firm service using the

following priorities.

19.1A FIRM SCHEDULING PRIORITIES THROUGH PIPELINE SEGMENTS.

GTN shall first schedule nominations for service within a

shipper's Primary Path. In the event GTN has insufficient

capacity to schedule all nominations for service within Shippers'

Primary Paths, GTN shall schedule service to Shippers

nominating for service along Primary Paths on a pro rata basis in

accordance with each shipper's MDQ.

GTN will next schedule nominations for service within a

shipper's Reverse Path. In the event GTN has insufficient

capacity to schedule all nominations for service within Shippers'

Reverse Paths, GTN shall schedule service to Shippers

nominating for service along Reverse Paths on a pro rata basis in

accordance with each shipper's MDQ.

19.1B FIRM SCHEDULING PRIORITIES THROUGH RECEIPT POINTS.

First, GTN shall schedule service to those shippers for

whom the constrained receipt point is a Primary Receipt Point,

up to each shipper's MDQ at that point (plus an allowance for

fuel). In the event full service cannot be provided to

shippers holding Primary Receipt Point rights, service will be

scheduled on a pro rata basis based on each shipper's primary

MDQ at that point.

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