Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

 Contents / Previous / Next / Main Tariff Index

Effective Date: 04/16/2008, Docket: RP08-274-000, Status: Effective

Second Revised Sheet No. 128 Second Revised Sheet No. 128 : Effective

Superseding: First Revised Sheet No. 128

TRANSPORTATION GENERAL TERMS AND CONDITIONS

18. OPERATING PROVISIONS (Continued)

18.1 Firm Service (Continued)

(b) Future Sales of Capacity: (Continued)

Capacity that is reserved pursuant to this Paragraph 18.1(b)

will be made available for transportation service on an

interim basis up to the commencement date of the service

agreement for such capacity. For such interim service

agreements, GTN reserves the right to limit Shipper extension

rights, including the right of first refusal, within the

service agreement. Transporter will indicate in any open

season posting of this capacity any limitations on extension

rights that will apply to such interim transportation service.

(c) Available Capacity:

GTN will post available capacity on its Internet website. A

requestor that submits a valid request may submit a bid via

the website for the available capacity subsequent to GTN's

posting of such capacity on the website. The Bid Period will

be a minimum of 1 business day for capacity available for up

to 1 month; a minimum of 3 business days for capacity

available for greater than one month but less than one year;

and a minimum of 5 business days for capacity available for

one year or more. All bids not withdrawn prior to the close

of the Bidding Period shall be binding. At the end of the

Bidding Period, GTN will evaluate the bids and determine the

bid(s) having the greatest economic value as determined in

Paragraph 18.1(e).

If GTN determines that no bids satisfy the open season

criteria, GTN will post the capacity on its website as

available unsubscribed capacity. GTN will award such capacity

on a first-come, first-served basis to shippers that offer the

maximum recourse rate or an acceptable discounted or

negotiated rate.

(d) After the close of the Bidding Period, GTN may tender a

Service Agreement for execution to the requestor(s) submitting

the bid(s) having the greatest economic value for the capacity

available, subject to the provisions of Paragraph 18.1(f).

(Continued)