Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

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Effective Date: 10/06/2003, Docket: RP04- 23-000, Status: Effective

Original Sheet No. 317 Original Sheet No. 317 : Effective

FORM OF SERVICE AGREEMENT

APPLICABLE TO ELECTRONIC DATA INTERFACE

EXHIBIT XXX (Sequential Number)

ELECTRONIC DATA INTERCHANGE TRADING PARTNER AGREEMENT

DATED ___________________

TO BE EFFECTIVE ___________________ (DATE)

COVERING TRANSACTION SET NUMBER ____________

2. SECURITY PROCEDURES: (Define security procedures,

including but not limited to encryption and authentication,

if any.)__________________________________________________

3. LIST OF AUTHORIZED USERS: (List of authorized users of

User's signature code as set forth in Section 1.5 of this

Agreement. _______________________________________________

4. ADDITIONAL TERMS AND CONDITIONS: (If no special terms and

conditions have been agreed upon, enter "None".)

__________________________________________________________

5. LIMITATION ON DIRECT DAMAGES: (If no limitation has been

agreed upon,

enter "NONE".)

__________________________________________________________

6. CONFIDENTIAL INFORMATION: (See Section 3.2. If no

limitation has been agreed upon, enter "None".)

__________________________________________________________

The undersigned do hereby execute this Exhibit pursuant to the

Agreement referenced above and to which this exhibit is to be

attached and do hereby ratify said Agreement for all purposes

set forth in this Exhibit.

COMPANY NAME: _______________ COMPANY NAME: _________________

BY: _________________________ BY: ___________________________

PRINTED NAME: _______________ PRINTED NAME: ________________

TITLE: ______________________ TITLE: ________________________