Gulf States Transmission Corporation

Original Volume No. 1

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Effective Date: 10/01/2002, Docket: RP02-431-000, Status: Effective

Second Revised Sheet No. 69 Second Revised Sheet No. 69 : Effective

Superseding: First Revised Sheet No. 69

TRADING PARTNER AGREEMENT

for the Electronic Data Interchange

of Information Over the Public Internet

THIS TRADING PARTNER AGREEMENT (the "Agreement") is made by and between

_____________________________________ ("Company") a __________________________________,

with offices at ___________ ___________________, and __________________________________

("Trading Partner"), a _____________________________________________ corporation, with

offices at __________________________________________________ (collectively, referred to

as the "parties").

WHEREAS, the parties desire to facilitate administrative matters, reports and

other information exchanged ("Transactions") by electronically transmitting and

receiving data in agreed formats in substitution for on-line transmittal and/or for

conventional paper-based documents; and

WHEREAS, the parties desire to assure that such Transactions are legally valid

and enforceable as a result of the use of available electronic technologies as

contemplated herein in place of original, handwritten signatures of the parties for the

mutual benefit of said parties; and

WHEREAS, the parties desire to enter into this Agreement to govern their

relationship solely with respect to electronic data interchange ("EDI") Transactions

utilizing ASC X12 protocols over the public Internet as the electronic delivery

mechanism.

NOW THEREFORE, in consideration of the premises and covenants herein contained,

and for other good and valuable consideration, the receipt and sufficiency of which are

hereby acknowledged, the parties, intending to be legally bound, hereby agree as

follows:

Section 1. Prerequisites.

1.0. Appendix. The Appendix and Exhibit(s) thereto hereafter are referred to

as the "Appendix." The Appendix to this Agreement is attached hereto and

made a part hereof for all purposes and shall indicate elections and/or

amendments made by the parties by mutual agreement. In the event of a

conflict between the provisions in the body of this Agreement and the

Appendix, the Appendix will govern.

1.1. Document Standards. Each party may electronically transmit to or receive

from the other party any of the transaction sets listed in the Exhibit(s)

of the Appendix, and transaction sets which the parties by written

agreement add to the Appendix (collectively "Documents"). Any

transmission of data which is not a Document shall have no force or

effect between the parties. All Documents shall be transmitted in

accordance with the North American Energy Standards Board ("NAESB")

standards and the published industry guidelines as adopted by the Federal

Energy Regulatory Commission ("FERC") or its successor agency

("Standards"), or as may be agreed upon by the parties as set forth in

the Appendix.

1.2. Third Party Service Providers.

1.2.1. Documents will be transmitted electronically to each party as

specified in the Appendix either directly or through a third

party service provider ("Provider") with which either party may

contract. Either party may modify its election to use, not use

or change a Provider upon 30 days prior written notice to the

other party.