Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

Effective Date: 09/13/2009, Docket: RP09-903-000, Status: Effective

First Revised Sheet No. 196 First Revised Sheet No. 196

Superseding: Original Sheet No. 196

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

28. CAPACITY RELEASE (Continued)

28.10 Crediting, Billing Adjustments and Refunds (Continued)

Should Replacement shipper default on payment to GTN of the

reservation charge (or equivalent volumetric rate) GTN shall

bill Releasing Shipper for such unpaid charges and apply

interest to such adjustments in accordance with the

provisions of Paragraph 8 of the Transportation General Terms

and Conditions.

(d) Excess Revenue Credits

Releasing Shipper is entitled to excess revenue credits

resulting when the reservation charge (or equivalent

volumetric rate) revenues actually received by GTN from the

Replacement Shipper(s) exceed the reservation charge (or

equivalent volumetric rate) revenues which would have been

received by GTN from the Releasing Shipper if capacity was

not released.

(e) Refunds

GTN shall track all changes in its rates approved by the

Commission. In the event the Commission orders refunds of

any such rates charged by GTN and previously approved, GTN

shall make corresponding refunds to all affected Shippers

including Shippers receiving capacity release service

In such instances when rates to Replacement Shippers are

reduced, GTN shall make corresponding adjustments to the

crediting of revenues to Releasing Shippers for the period

such refunds are payable. For capacity release transactions

that are not subject to a rate cap, as described in Section

28.2 of these General Terms and Conditions, the prevailing

rate for the transaction shall be considered just and

reasonable and the Replacement Shipper(s) shall not be

entitled to receive the refunds referenced herein.

(Continued)