Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

Effective Date: 04/01/2003, Docket: RP00-410-003, Status: Effective

Second Revised Sheet No. 121A Second Revised Sheet No. 121A : Effective

Superseding: First Revised Sheet No. 121A

GENERAL TERMS AND CONDITIONS

(Continued)

8. NOMINATIONS, SCHEDULING, AND CURTAILMENT (Continued)

(F) If there is no response to a Request for Confirmation or an

unsolicited Confirmation Response, MRT will provide the nominating

party with the following information as part of the documentation of

the scheduled quantity to explain why the nomination failed, as

applicable:

(1) MRT did not conduct the confirmation;

(2) The upstream confirming party did not conduct the

confirmation;

(3) The upstream service requester did not have the

gas or submit the nomination;

(4) The downstream confirming party did not conduct

the confirmation; and

(5) The downstream service requester did not have the

market or submit the nomination.

(ii) Nomination Changes Due to Daily Imbalances.

Customers, Pool Operators, and Parties to Operational Balancing

Agreements with MRT are responsible for ensuring that daily flows

match confirmed nominations. If MRT determines that actual daily

flows under a particular agreement differ from the confirmed

nominations, MRT may require prospective nomination changes by

receipt or delivery point(s) in order to balance agreements as

closely as possible.

(iii) At the end of each gas flow day, MRT shall make

available electronically via the Internet to Customers and Pool

Operators information containing scheduled quantities, including

scheduled intraday nominations and any other scheduling changes.

(i) Curtailment and Interruptions in Service. MRT shall notify

Customer(s) and Pool Operator(s) affected by interruptions in service or

curtailment pursuant to Section 8.3 of these General Terms and Conditions

as soon as practicable. MRT shall also notify the affected Customer(s) or

Pool Operator(s) as soon as practicable of the resumption of service, and

upon such notification, the Customer or Pool Operator shall verify the

level of service desired. MRT may require a Customer or Pool Operator to

submit a completed nomination specifying the level of service desired.

Upon thirty (30) days' notice via posting on MRT's Internet web site, MRT

may provide such notices to Customers and Pool Operators electronically

via the Internet.