Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

Effective Date: 01/19/2005, Docket: RP05-129-000, Status: Effective

Original Sheet No. 291C Original Sheet No. 291C : Effective

Contract # ___________

TRANSPORTATION SERVICE AGREEMENT

FOR RATE SCHEDULE [FSS AND ISS]

EXHIBIT A

(Continued)

Page 3 of 3

(ii) Regulatory Authority: This Exhibit A is subject to Section 30 of the GT&C of MRT's tariff.

MRT and Customer hereby acknowledge that this Exhibit A is subject to all valid and applicable

federal and local laws and to the orders, rules and regulations of any duly constituted federal

or local regulatory body or governmental authority having jurisdiction. Any provision of this

Exhibit A which is determined by any court or regulatory body having jurisdiction to be invalid

or unenforceable will be ineffective to the extent of such determination only, without

invalidating, or otherwise affecting the validity of, the remaining provisions. Except as

otherwise provided in subsection (b) above, unless the parties agree otherwise, if MRT

reasonably determines that a federal or local law, or order, rule or regulation of any

governmental authority having or asserting jurisdiction (1) requires performance by MRT that is

inconsistent with the terms of this Exhibit A, or (2) conditions or prohibits the granting of

selective discounts or other rates specified in paragraph (d) of this Exhibit A, then MRT and

Customer shall promptly take all reasonable actions in good faith to enter into alternative

arrangements that will secure to the maximum extent practicable for each party all of the

benefits of the transaction set out in this Agreement; provided, however, that MRT shall not be

required to enter into or continue arrangements that would result in a greater economic

detriment to MRT than existed prior to the regulatory event or change.

(iii) [Insert Other Rate-Related Provisions.]

Executed by a duly authorized representative of each party hereto, in the space provided below:

CENTERPOINT ENERGY - MISSISSIPPI RIVER [NAME OF CUSTOMER]

TRANSMISSION CORPORATION

By:___________________________ By:_________________________________

Name:_________________________ Name:_______________________________

Title:________________________ Title:______________________________

Date:_____________________ Date:_______________________________

[EFFECTIVE _________________,] [SUPERSEDES EXHIBIT A DATED: _____________________]