Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

Effective Date: 09/03/2004, Docket: RP04-440-000, Status: Effective

First Revised Sheet No. 103 First Revised Sheet No. 103 : Effective

Superseding: Original Sheet No. 103

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

1. DEFINITIONS (Continued)

1.16 Bid Period: The period of time during which a Replacement

Shipper may bid to contract for a parcel which has been

posted for release by a Releasing Shipper.

1.17 Parcel: The term utilized to describe an amount of capacity,

expressed in Dth/d, from a specific receipt point to a

specific delivery point for a specific period of time which

is released and bid on pursuant to the capacity release

provisions contained in Paragraph 28 of these Transportation

General Terms and Conditions.

1.18 Primary Release: The term used to describe the release of

capacity by a Releasing Shipper receiving service under a

Part 284 firm transportation rate schedule.

1.19 Secondary Release: The term used to describe the release of

capacity by a Replacement Shipper receiving service under a

Part 284 firm transportation rate schedule.

1.20 Bid Reconciliation Period: The period of time subsequent

to the Bid Period during which bids are evaluated by GTN.

1.21 Match Period: The period of time subsequent to the Bid

Reconciliation Period and before the notification deadline

for awarding capacity for Prearranged Deals that require

bidding. During this period, the Prearranged Shipper may match

any higher bids for the Parcel.

1.22 Mainline Facilities: The term "Mainline Facilities" shall

mean the 36-inch and 42-inch mains and appurtenant

facilities extending from the interconnection with the

pipeline facilities of TransCanada PipeLines Limited B.C. System

and Foothills Pipe Lines (South B.C.) Ltd., near Kingsgate,

British Columbia to the interconnection with the pipeline

facilities of Pacific Gas and Electric Company near Malin,

Oregon.

(Continued)