Tuscarora Gas Transmission Company

Original Volume No. 1

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Effective Date: 10/01/2002, Docket: RP02-471-000, Status: Effective

Original Sheet No. 48B Original Sheet No. 48B : Effective

GENERAL TERMS AND CONDITIONS

(h) Imbalance trades can only be withdrawn by the initiating trader and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.

(i) 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.

(j) After receipt of an Imbalance Trade Confirmation, the Transportation

Service Provider should send the Imbalance Trade Notification to the

initiating trader and the confirming trader no later than noon

(central clock time) (10:00 a.m. PCT) the next business day.

(k) Netting, posting and trading of imbalances should be accomplished

based on the Transportation Service Provider's (TSP) current method

for accounting for imbalances and does not require TSPs to institute

daily imbalance procedures, if they are not already present on the

TSP's system.