Trans-Union Interstate Pipeline, L.P.

Original Volume No. 1

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Effective Date: 02/07/2006, Docket: RP06-217-000, Status: Effective

Original Sheet No. 40 Original Sheet No. 40 : Effective

RATE SCHEDULE IT

INTERRUPTIBLE TRANSPORTATION SERVICE

1. AVAILABILITY

This IT Rate Schedule is available to any party (hereinafter

called

"Shipper"), for interruptible transportation service under the

authority and

provisions of Part 284 of the regulations of the Federal Energy

Regulatory

Commission, provided that:

1.1 Transporter determines it has sufficient system capacity to

render the

interruptible transportation service and is able to provide said

transportation.

1.2 Any construction, acquisition, or expansion of facilities

necessary to

commence and provide the interruptible transportation service has

been

completed.

1.3 Shipper has executed the IT Interruptible Service Agreement

in the form

contained in this FERC Gas Tariff for service under this Rate

Schedule.

1.4 Shipper has made arrangements acceptable to Transporter for

service on

upstream transporters.

1.5 Shipper has satisfied the creditworthiness criteria in

section 28 of the

General Terms and Conditions ("GT&C") of Transporter's FERC Gas

Tariff.

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 Service hereunder is available on any Day during a Year, and

will be

interruptible, as provided herein, and pursuant to the Shipper's

Interruptible

Transportation Agreement and Transporter's GT&C, subject to the

availability

of capacity, Transporter's operating conditions and system

requirements, the

provisions of an effective IT Service Agreement, and to the GT&C.

2.2 Transporter may refuse to render service hereunder if and

for so long as

Shipper is in default under its Interruptible Transportation

Agreement, or

under any Transportation Agreement with Transporter, or under the

GT&C.

2.3 Transporter will receive for Shipper's account for

Transportation

hereunder daily quantities of Gas up to Shipper's Maximum Daily

Transportation

Quantity ("MDTQ"), as set forth in its Interruptible

Transportation Agreement

at the Receipt Point on Transporter's system available to Shipper

pursuant to

Shipper's Interruptible Transportation Agreement and the GT&C.

Such MDTQ

shall be specified in Shipper's Interruptible Transportation

Agreement.

Transporter will deliver for Shipper's account, at the Delivery

Point

nominated by Shipper from the Delivery Point listed at Appendix A

to Shipper's

Transportation Agreement, MMBtus equivalent to the amount of

MMBtus received

by Transporter at the Receipt Point.