Discovery Gas Transmission LLC

Original Volume No. 1

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Effective Date: 08/01/1998, Docket: RP98-266-000, Status: Effective

First Revised Sheet No. 118 First Revised Sheet No. 118 : Effective

Superseding: t No. 118

3. OPERATING PROVISIONS FOR INTERRUPTIBLE SERVICE

3.1 AVAILABILITY OF INTERRUPTIBLE SERVICE - Interruptible

service under this FERC Gas Tariff will be provided when,

and to the extent that, Transporter determines capacity

is available in its existing System that is not subject

to a superior claim by another Shipper or another class

of service. Available Interruptible capacity will be

allocated by Transporter in accordance with Subsection

3.2.

3.2 PRIORITY OF SERVICE - Interruptible Transportation

services will be subordinate to Firm Transportation

services provided by Transporter. Transporter will

allocate available Interruptible capacity on a daily

basis to Shippers nominating service under the IT Rate

Schedule on the basis of rate. Capacity at each rate

level will be allocated on a pro rata basis.

3.3 SHIPPER REQUESTS FOR INTERRUPTIBLE SERVICE - Requests for

Interruptible service hereunder must be made by providing

the specific information in, and in the form prescribed

by, Section 4 of the General Terms and Conditions.

Request for Service forms will be supplied to any

potential Shipper upon request, and are available at

Transporter's offices during normal business hours or

electronically on Transporter's Internet web site (web

site) by following the procedures in Section 17 of the

General Terms and Conditions.

3.4 REQUESTS FOR OPERATING DATA - Upon request of

Transporter, Shipper shall submit estimates of daily,

monthly and annual quantities of Gas to be transported,

including peak day requirements, together with the

estimated amounts thereof applicable to each Receipt

Point and Delivery Point. Transporter will use such

information and operating data to determine its System's

Available Capacity, to evaluate potential System Capacity

needs, to plan its maintenance and repair operations, and

to assure adequate service to its Shippers.