Discovery Gas Transmission LLC

Original Volume No. 1

Effective Date: 10/01/2002, Docket: RP02-456-003, Status: Effective

Second Revised Sheet No. 123 Second Revised Sheet No. 123 : Effective

Superseding: First Revised Sheet No. 123

Intraday Nominations will be scheduled in one of three "Cycles"

and will be processed according to the following timelines:

i. 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 Transporter (including from

TTTSPs); 6:30 p.m. to send Quick Response; 9:00 p.m. for

receipt of completed confirmations by Transporter from

upstream and downstream connected parties; 10:00 p.m. for

Transporter to provide scheduled quantities to affected

Shippers and point Operators, and to provide scheduled

quantities to bumped parties (notice to bumped parties),

(Central Clock Time on the Day prior to flow).

Scheduled quantities resulting from an Evening Nomination

that does not cause another Shipper to receive notice that

it is being bumped should be effective at 9:00 a.m. on the

Gas Day; and when an Evening Nomination causes another

Shipper to receive notice that it is being bumped, the

scheduled quantities should be effective at 9:00 a.m. on the

Gas Day.

ii. The Intraday 1 Nomination Cycle: 10:00 a.m. for nominations

leaving control of the nominating party; 10:15 a.m. for

receipt of nominations by Transporter (including from

TTTSPs); 10:30 a.m. to send Quick Response; 1:00 p.m. for

receipt of completed confirmations by Transporter from

upstream and downstream connected parties; 2:00 p.m. for

Transporter to provide scheduled quantities to affected

Shippers and point Operators, and to provide scheduled

quantities to bumped parties (notice to bumped parties),

(Central Clock Time on Gas Day). Scheduled quantities

resulting from Intraday 1 Nominations should be effective at

5:00 p.m. on the Gas Day.