Reliant Energy Gas Transmission Company

Fifth Revised Volume No. 1

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Effective Date: 12/01/2002, Docket: RP03- 60-000, Status: Effective

Third Revised Sheet No. 251 Third Revised Sheet No. 251 : Effective

Superseding: Substitute Second Revised Sheet No. 251

GENERAL TERMS AND CONDITIONS

(continued)

1. DEFINITIONS AND INTERPRETIVE MATTERS (continued)

the eastern terminus of the Neutral Pooling Area and north of Line

AC.

Operating Plan. See Section 20.

Operating Range shall mean the authorized percentage variance of

two percent (2%) between the total Dth or quantity of Gas

delivered by Shipper at the Point(s) of Receipt, less the sum of

Storage Fuel Use and LUFG, if any, and Fuel Use and LUFG, and the

total Dth or quantity of Gas received by Shipper at the Point(s)

of Delivery at any given time under a Service Agreement.

Operational Alerts. See Section 20.

Operational Flow Orders or OFOs. See Section 20. An Operational

Flow Order is an order issued to alleviate conditions, inter alia,

which threaten or could threaten the safe operations or system

integrity of Transporter's system, or to maintain operations

required to provide efficient and reliable firm service. Whenever

Transporter experiences these conditions any pertinent order

should be referred to as an Operational Flow Order.

Operator shall mean the person or entity that is responsible for

operating facilities immediately upstream of Transporter's system.

Order No. 636 Open Season shall mean the periods during which

Transporter received requests for allocating capacity for new

services to be provided under this Tariff. For Rate Schedules

NNTS and FSS, the Open Season was held between 7:00 a.m. March

3,1993, and the close of business March 16, 1993.

Oversupplies shall mean an Imbalance existing at any given time

consisting of an excess in the quantities which Shipper provided

to Transporter at Receipt Points, including Storage Points of

Withdrawal, over the quantities received by Shipper at Point(s) of

Delivery.

Overrun Gas. See Section 5.3 of Rate Schedules FT and IT.

Penalty Base Period. See Section 31.2.