TransColorado Gas Transmission Company

Original Volume No. 1

Effective Date: 07/01/2002, Docket: RP02-328-000, Status: Effective

Second Revised Sheet No. 410 Second Revised Sheet No. 410 : Superseded

Superseding: First Revised Sheet No. 410

TRADING PARTNER AGREEMENT

for the Electronic Data Interchange

of Information Over the Public Internet

Section 1. Prerequisites. (Continued)

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.

1.2.2. Each party shall be responsible for the costs, acts

and omissions of any Provider with which it contracts. This provision

does not limit any claim of either party against a Provider with respect

to such acts or omissions.

1.3. System Operations. Each party, in its sole discretion and at

its own expense, shall provide for the requisite hardware, software,

services and/or testing procedures necessary to transmit, receive and

retrieve Documents.