Transcolorado Gas Transmission Company LLC

Second Revised Volume No. 1

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Effective Date: 12/28/2007, Docket: RP08-167-000, Status: Effective

Original Sheet No. 419 Original Sheet No. 419 : Effective

APPENDIX

ELECTRONIC DATA INTERCHANGE TRADING PARTNER AGREEMENT

between ______________________________

and _________________________________________________

DATE ____________

TO BE EFFECTIVE ____________ (DATE)

RECEIPT COMPUTER:

COMPANY NAME: ______________________________________________

INTERNET ADDRESS (URL) ______________________________________________

ISA QUALIFIER ______________________________________________

ISA ID ______________________________________________

FOR PUBLIC KEY CHANGES OR EMERGENCY KEY VERIFICATION:

CONTACT NAME: ______________________________________________

E-MAIL ADDRESS: ______________________________________________

PHONE NUMBER: ______________________________________________

COMPANY NAME: ______________________________________________

INTERNET ADDRESS (URL) ______________________________________________

ISA QUALIFIER ______________________________________________

ISA ID ______________________________________________

FOR PUBLIC KEY CHANGES OR EMERGENCY KEY VERIFICATION:

CONTACT NAME: ______________________________________________

E-MAIL ADDRESS: ______________________________________________

PHONE NUMBER: ______________________________________________

2. STANDARDS: __________________________________________

3. INDUSTRY GUIDELINE: __________________________________________

The mutually agreed provisions of this Exhibit shall control in the event of

any conflict with any listed industry guidelines.

4. SECURITY PROCEDURES: _______________________________________

5. TERMS AND CONDITIONS: _______________________________________

6. DATA RETENTION: _______________________________________

7. REFERENCED AGREEMENTS: _______________________________________

8. LIMITATION ON DIRECT DAMAGES:

_______________________________________

9. CONFIDENTIAL INFORMATION: _______________________________________