Great Lakes Gas Transport, L.L.C.

Second Revised Volume No. 1

Effective Date: 01/01/1998, Docket: RP98- 82-000, Status: Effective

First Revised Sheet No. 23 First Revised Sheet No. 23 : Effective

Superseding: Original Sheet No. 23

IT RATE SCHEDULE

Interruptible Transportation Service

1. AVAILABILITY

This IT Rate Schedule is available for interruptible transportation

service by Gas Transport, Inc. (hereinafter called "Transporter") on behalf

of any person (hereinafter called "Shipper") to the extent that: (i) cap-

acity is available on Transporter's system from time to time; (ii) Shipper

makes a request for service as set forth in Section 24 of the General Terms

and Conditions of this Tariff ("GT&C") and executes a service agreement for

interruptible transportation under this IT Rate Schedule in the form con-

tained in this Tariff; and (iii) such service complies with the terms and

conditions of this IT Rate Schedule.

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 The Transportation service provided under this IT Rate Schedule shall

be performed under Subparts B, G, H, or K of Part 284 of the Commis-

sion's Regulations. This IT Rate Schedule shall apply to all gas

transporter by Transporter for Shipper pursuant to an IT Service

Agreement.

2.2 Service hereunder shall be provided on an interruptible basis.

Interruption of service includes decreasing, suspending, or

discontinuing both the receipt and delivery of gas.

Service hereunder may be interrupted whenever necessary to pro-

vide firm transportation services. Service hereunder is also subject

to the availability of any necessary upstream or downstream trans-

portation, which shall be the responsibility of Shipper to arrange.

2.3 Service hereunder shall consist of the receipt by Transporter of

natural gas tendered by Shipper for transportation at the receipt

point(s) specified in the IT Service Agreement, the transportation of

that natural gas through or by use of Transporter's system, and the

delivery of that natural gas (after reductions as set out in the IT

Service Agreement and Section 5 of this IT Rate Schedule) by Trans-

porter to Shipper or for Shipper's account at the delivery point(s)

specified in the IT Service Agreement.

2.4 An IT Service Agreement with a primary term of one year or longer

shall continue in effect beyond the expiration of the primary term

until terminated by either party upon six (6) months written notice to

the other.