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. 303 Original Sheet No. 303 : Effective





Document(s). Neither party shall disclose to any unauthorized

person the Signature Code(s) of the other party. User shall take

all commercially reasonable measures to maintain the secrecy and

confidentiality of the Signature Code of User. Without limiting

the generality of the foregoing sentence, Use shall, at all

times, provide GTN with a list of all currently authorized

representatives of User having access to the User's Signature

Code and shall be solely responsible for any transmission

utilizing User's Signature Code by anyone not set forth on such

list and any and all consequences resulting from such

unauthorized use of the User's Signature Code.


Section 2. Transmissions.


2.1. Proper Receipt. Documents shall not be deemed to have been

properly received, and no Document shall give rise to any

obligation, until accessible to the receiving party at such

party's Receipt Computer designated in Appendix A. Where the

parties employ the services of Providers to transmit and receive

Documents, the Receipt Computer shall be defined in Appendix A as

the receiving party's electronic mailbox provided by the

receiving party's Provider.


2.2. Verification.


2.2.1. Upon proper receipt of any Document, the receiving party

shall promptly and properly transmit a functional acknowledgment

in return, unless otherwise specified in Appendix A.


2.2.2. For the purposes of this Agreement, a "functional

acknowledgment" means an ASC X.12 Transaction Set 997, which

confirms a Document (in the format specified by such

acknowledgment) has been received and whether all required

portions of the Document are syntactically correct, but which

does not confirm the substantive content(s) of the related