Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

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Effective Date: 03/01/2004, Docket: RP04-152-000, Status: Effective

Eighth Revised Sheet No. 224 Eighth Revised Sheet No. 224 : Effective

Superseding: Seventh Revised Sheet No. 224

GENERAL TERMS AND CONDITIONS

(Continued)

17. BILLING, STATEMENTS, PAYMENT AND RECORDS

17.1 MRT shall, no later than the ninth (9th) business day of each

month, prepare invoices for all charges incurred by Customer during the

previous month, pursuant to the applicable rate schedule based on actual

quantities delivered, or if not available, best estimates; provided, however,

that adjustments shall be made to such quantities in subsequent months'

invoices, as required based on actual quantities delivered. MRT shall submit

each Customer's invoice by mail, telecopy, overnight mail or hand delivery.

MRT, upon thirty (30) days' notice provided via a posting on its Internet web

site, may change the method of submission of invoices to Customers to

electronic methods via the Internet. If for any reason the presentation of an

invoice by MRT to Customer is delayed until after the ninth (9th) business day

of the month, then payment by Customer may be delayed but only in accordance

with the provisions contained herein. As soon as possible following the

receipt of all necessary information, MRT shall submit to Customer an invoice

for billing based on such information. In the event the quantities of gas

delivered to or received by MRT are not measured at the standard pressure

base, the factor to be utilized to convert such delivered quantities shall be

in accordance with NAESB Standards and set forth in MRT's procedures as may be

established and publicized from time to time. For reporting purposes, BTU

conversion factors should be reported to not less than three (3) decimal

places and Pressure Base conversion factors should be reported to not less

than six (6) decimal places. For calculation purposes, not less than six (6)

decimal places should be used for both conversion factors. Customer shall pay

MRT by electronic funds transfer to a designated bank account established by

MRT for invoiced amounts equal to or greater than $50,000. For invoiced

amounts less than $50,000, Customer shall pay MRT by check to MRT's designated

office, Post Office Box or, at Customer's election, by electronic funds

transfer to a designated bank account established by MRT. Subject to Section

17.3 below, payments for all charges billed in accordance with the provisions

of this tariff shall be made by Customer to MRT within ten (10) days of the

postage meter date, postmark date, telecopy date, delivery date of overnight

mail, time stamp date or date of hand delivery of the Customer's bill.

Payments made by electronic funds transfer shall be considered to have been

made on the date when such payment is received by MRT.

17.2 In the event Customer fails to pay all of the amount due MRT

within the ten (10) day period, interest thereon shall accrue from the due

date at the maximum allowable interest permitted under and in accordance with

18 C.F.R. Section 154.501(d) or any superseding regulations of the Commission.

If such failure to pay continues for thirty (30) days after payment is due,

MRT, upon ten (10) days' prior written notice to Customer, may suspend further

receipt and/or delivery of gas until such past due amount is paid, or

satisfactory credit arrangements have been made in accordance with Section

5.4(k) of these General Terms and Conditions. If Customer fails to pay or

make satisfactory credit