Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

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Effective Date: 08/01/2009, Docket: RP09-684-000, Status: Effective

Third Revised Sheet No. 181 Third Revised Sheet No. 181

Superseding: Second Revised Sheet No. 181

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

28. CAPACITY RELEASE (Continued)

28.5 Posting of a Parcel (Continued)

Releasing Shippers who elect to release capacity based on

nondiscriminatory recall provisions and/or special terms and

conditions are required to submit their request to release capacity

by at least two business days before the close of the Posting

Period as stated in Section 28.8. This is to ensure adequate time

for GTN to review and validate that any recall and/or special terms

and conditions are not discriminatory.

All Prearranged Shipper bids are subject to the Prearranged

Shipper(s) meeting the preliminary qualifications as defined in

Paragraph 28.6(a) for Replacement Shippers.

A Parcel may be revised or withdrawn by the Releasing Shipper at

any time prior to the close of the Posting Period. A Parcel cannot

be revised after the close of the Posting Period. In accordance

with NAESB Standard 5.3.14, Version 1.8 offers should be binding

until written or electronic notice of withdrawal is received by the

capacity release service provider. Parcels may be withdrawn

subsequent to the close of the Posting Period and up until the

close of the Bid Period only in situations where the Releasing

Shipper has an unanticipated need for the capacity and no minimum

bid has been made. In such instances, Releasing Shipper shall

notify GTN electronically of its need to withdraw the Parcel due to

an unanticipated need for the capacity. The withdrawal or revision

of a Parcel will terminate all bids submitted for that Parcel to

date. Replacement Shippers will need to resubmit their bids for

the Parcel if the Parcel is resubmitted for release.

(Continued)