Reliant Energy Gas Transmission Company

Fourth Revised Volume No. 1

Effective Date: 11/01/1997, Docket: RP97- 61-009, Status: Effective

Second Revised Sheet No. 168 Second Revised Sheet No. 168 : Effective

Superseding: First Revised Sheet No. 168

GENERAL TERMS AND CONDITIONS

(continued)

the eastern terminus of the Neutral Pooling Area and north

of Line AC.

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.

Operating Plan. See Section 20.

Operating Range shall mean the authorized percentage

variance of two percent (2%) between the total MMBtu or

quantity of Gas delivered by Shipper at the Point(s)

of Receipt, less the sum of Storage Fuel, if any, and

Compressor Fuel, and the total MMBtu 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.

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.

Point(s) of Delivery or Delivery Point(s) shall mean the point(s)

specified in a Service Agreement at which Shipper may request

Transporter to tender for delivery as for its account including,

but not limited to, Storage Points of Injection and, under