Reliant Energy Gas Transmission Company

Fifth Revised Volume No. 1

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Effective Date: 09/20/1999, Docket: RP99-473-000, Status: Effective

First Revised Sheet No. 527 First Revised Sheet No. 527 : Effective

Superseding: Original Sheet No. 527

Section 2. Transmissions

2.1 Proper Receipt

2.1.1 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 the Exhibit(s), as evidenced by the receipt by sending party of the HTTP response initiated by receiving

party. The HTTP response shall specify the date and time of receipt of a Document at the receiving Internet

server (also called "time-c"). No Document shall have any effect if the HTTP response is not received by

sending party, or if the HTTP response indicates an error.

2.1.2 The "Receipt Computer" shall be defined in the Exhibit(s) as the receiving party's Uniform

Resource Locator ("URL"), which describes the protocols which are needed to access the resources and point to

the appropriate Internet locations. Where the parties employ the services of Providers to transmit and receive

Documents, the Receipt Computer shall be defined in the Exhibit(s) as the receiving party's URL provided by

the receiving party's Provider.

2.2 Digital Signature Verification and Decryption. Upon proper receipt of any Document, the receiving

party shall attempt to decrypt the Document and verify the digital signature of the sending party. If the

Document is verified and the decryption is successful, the receiving party shall transmit a Functional

Acknowledgment in return. If the Document is verified and the decryption is unsuccessful, the receiving party

shall send the applicable error message to the sending party. The sending party shall attempt to correct the

error and promptly retransmit the Document or otherwise contact the receiving party.

2.3 Functional Acknowledgment and Response Document

2.3.1 For the purposes of this Agreement, a "Functional Acknowledgment" means an ASC X12

Transaction Set 997 which confirms a Document has been received and whether all required portions of the

Document are syntactically correct or not, but which does not confirm the substantive content(s) of the related

Document.

2.3.2 If the Functional Acknowledgment indicates an error, neither party shall rely on the Document.

The sending party shall attempt to correct the error and promptly retransmit the Document or otherwise contact

the receiving party. If the Functional Acknowledgment does not indicate any error, the Functional

Acknowledgment shall constitute conclusive evidence a Document has been received in syntactically correct

form.

2.3.3 If there has been proper receipt pursuant to Section 2.1, verification and successful decryption

pursuant to Section 2.2, and if the receiving party nevertheless fails to transmit a Functional Acknowledgment,

the sending party's records of the contents of the Document shall control, unless the sending party has

retransmitted a Document pursuant to Section 2.3.7.

2.3.4 By mutual agreement, the parties may designate in the Exhibit(s) a "Response Document"

Transaction Set as a substitute for or in addition to an ASC X12 Transaction Set 997. A Response Document

confirms that a Document has been received, and whether all required portions of the Document are syntactically

correct, and contains data sent by the receiving party to the sending party in response to the substantive

content of the related Document.

2.3.5 If the Response Document indicates an error, neither party shall rely on the Document or

portion of the Document which is in error, if known. The sending party shall attempt to correct the errors and

promptly retransmit the Document or applicable portion or otherwise contact the receiving party. If the

Response Document does not indicate any error, the Response Document shall constitute conclusive evidence a

Document has been received in syntactically correct form.

2.3.6 If the parties have mutually agreed to the use of a Response Document, and if there has been

proper receipt pursuant to Section 2.1, verification and successful decryption pursuant to Section 2.2, and if

the receiving party nevertheless fails to transmit a Response Document, the sending party's records of the

contents of the Document shall control unless the sending party has retransmitted a Document pursuant to

Section 2.3.7.

2.3.7 Retransmissions. If the sending party of a Document has not received a corresponding

functional acknowledgment or response document within the time frame indicated in the Exhibit(s), the sending

party shall retransmit the Document and such Document shall be considered a new transmission for purposes of

Section 2.