Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

Effective Date: 10/06/2003, Docket: RP04- 23-000, Status: Effective

Original Sheet No. 148 Original Sheet No. 148 : Effective

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

19. PRIORITY OF SERVICE, SCHEDULING AND NOMINATIONS (Continued)

19.4 Nominations (Continued)

19.4(b) Nomination Cycles (continued)

Scheduled quantities resulting from an Evening Nomination

will be effective at 9:00 a.m. (CCT) (7:00 a.m. PCT)

on gas day.

(iii) THE INTRADAY 1 NOMINATION CYCLE:

10:00 a.m. (CCT) (8:00 a.m. PCT) nominations leave control

of the nominating party;

10:15 a.m. (CCT) (8:15 a.m. PCT) receipt of nominations by

GTN (including from TTTSPs);

10:30 a.m. (CCT) (8:30 a.m. PCT) GTN sends Quick Response;

1:00 p.m. (CCT) (11:00 a.m. PCT) receipt of completed

confirmations by GTN from upstream and downstream

connected parties;

2:00 p.m. (CCT) (12:00 noon PCT) GTN provides scheduled

quantities to affected shippers and point operators, and

provides scheduled quantities and notice to bumped parties.

Advance notice to bumped parties shall be provided by telephone,

facsimile, or electronic mail, at the shipper's option.

Scheduled quantities resulting from Intraday 1 Nominations should

be effective at 5:00 p.m. (CCT) (3:00 P.M. PCT) on gas day.