Questar Southern Trails Pipeline Company

Original Volume No. 1

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Effective Date: 10/01/2002, Docket: RP02-458-000, Status: Effective

First Revised Sheet No. 81 First Revised Sheet No. 81 : Effective

Superseding: Original Sheet No. 81

GENERAL TERMS AND CONDITIONS

telephone or pager. Shippers may tender nominations via

facsimile transmission during system down time.

(c) Third Party Account Administrators (3PAD)

wishing to provide title transfer tracking (TTT) services on

Southern Trails' system shall notify Southern Trails in

writing. If the terms are acceptable by both parties,

Southern Trails and the 3PAD will enter into an agreement

that will describe the points where TTT transactions will be

processed by the 3PAD and the coordination of activities

between the 3PAD and Southern Trails.

14.2 Nomination Cycles. A Shipper's nomination of gas

to be transported commencing at 9:00 a.m. each day shall

conform to NAESB Standard 1.3.2(i)-(v). Southern Trails will

support the following standard nomination cycles:

(a) Day Prior to Gas Flow:

(i) The Timely Nomination Cycle: 11:30

a.m. for nominations leaving control of the nominating party;

11:45 a.m. for receipt of nominations by Southern Trails;

noon to send quick response; 3:30 p.m. for receipt of

completed confirmations by Southern Trails from upstream and

downstream connected parties; 4:30 p.m. for receipt of

scheduled quantities by Shipper and point operator.

(ii) The Evening Nomination Cycle: 6:00

p.m. for nominations leaving control of the nominating party;

6:15 p.m. for receipt of nominations by Southern Trails; 6:30

p.m. to send quick response; 9:00 p.m. for receipt of

completed confirmations by Southern Trails from upstream and

downstream connected parties; 10:00 p.m. for Southern Trails

to provide scheduled quantities to affected Shippers and

point operators, and to provide scheduled quantities to

bumped parties (notice to bumped parties).

Scheduled quantities resulting from an evening

nomination that do not cause another Shipper on Southern

Trails' system to receive notice that it is being bumped will

be effective at 9:00 a.m. on gas day; and when an evening

nomination causes another Shipper on Southern Trails' system

to receive notice that it is being bumped, the scheduled

quantities shall be effective at 9:00 a.m. on gas day.