Gulf South Pipeline Company L P

Sixth Revised Volume No. 1

Effective Date: 10/01/2002, Docket: RP02-421-000, Status: Effective

Original Sheet No. 2420C Original Sheet No. 2420C : Effective

GENERAL TERMS AND CONDITIONS

Section 17

(Continued)

2.3.40 Authorizations to Post Imbalances that are received by the

Transportation Service Provider by 11:45 a.m. should be effective

by 8:00 a.m. the next business day (central clock time).

Imbalances previously authorized for posting should be posted on

or before the ninth business day of the month.

2.3.41 Transportation Service Providers should provide the ability to

post and trade imbalances until at least the close of the

seventeenth business day of the month.

2.3.42 Transportation Service Providers should provide the ability to

view and, upon request, download posted imbalances.

2.3.43 Imbalances to be posted for trading should be authorized by the

Service Requester.

2.3.44 Transportation Service Providers should not be required to post

zero imbalances.

2.3.45 When trading imbalances, a quantity should be specified.

2.3.46 Transportation Service Providers should enable the imbalance

trading process by: · Receiving the Request for Imbalance Trade,

· Receiving the Imbalance Trade Confirmation, · Sending the

Imbalance Trade Notification, and · Reflecting the trade prior to

or on the next monthly Shipper Imbalance or cashout.

2.3.47 Imbalance trades can only be withdrawn by the initiating trader

and only prior to the confirming trader's confirmation of the

trade. Imbalance trades are considered final when confirmed by

the confirming trader and effectuated by the Transportation

Service Provider.

2.3.48 To account for any imbalance remaining after imbalance trading

and cashout, where the Transportation Service Provider (TSP)

associates such imbalance with a contract, a Service Requester

(SR) and the TSP should agree to designate one of the SR's valid

contracts in the Operational Impact Area where the original

imbalance occurred, for such purpose.