Panther Interstate Pipeline Energy, L.L.C.

Original Volume No. 1

Effective Date: 02/01/2004, Docket: CP03-338-001, Status: Effective

Original Sheet No. 51 Original Sheet No. 51 : Effective

(a) A notice electing to exercise the right of first refusal

under Section 7 of these General Terms and Conditions shall

be in writing and sent by ordinary mail. Other

communications regarding the right of first refusal shall be

by facsimile. The posting for bidding shall be on

Transporter's Internet web site.

(b) Operational Flow Orders shall be communicated as provided in

Section 8.3 of these General Terms and Conditions.

curtailment shall be via facsimile or by electronic means

acceptable to both parties.

(d) Communications regarding invoicing and payment shall be

consistent with Section 10 of these General Terms and

Conditions.

(e) The current Retainage percentage and any change in such

percentage shall be communicated via posting on

Transporter's web site.

(f) Requests for service must be submitted in a form and manner

consistent with Section 5.

(g) Capacity release offers and bids must be communicated in

accordance with the procedures set forth in Section 11.

17. MODIFICATION

No modification of the terms and provisions of an executed

transportation service agreement shall be made except by the execution

of a superseding transportation service agreement or the execution of a

superseding exhibit to such agreement.

18. WAIVERS AND FUTURE DEFAULT

Transporter may waive any rights or any obligations of Shipper under any

transportation service agreement or this Tariff on a basis which is not

unduly discriminatory. No waiver by either Transporter or Shipper of

any one or more defaults by the other in the performance of any

provision of a transportation service agreement shall operate or be

construed as a waiver of any future default or defaults, whether of a

like or of a different character.