Gulf South Pipeline Company L P

Sixth Revised Volume No. 1

Effective Date: 04/01/2001, Docket: RP01-225-000, Status: Effective

First Revised Sheet No. 500 First Revised Sheet No. 500 : Superseded

Superseding: Original Sheet No. 500

ISS RATE SCHEDULE

INTERRUPTIBLE STORAGE SERVICE

1. AVAILABILITY

(a) This Interruptible Storage Service (ISS) Rate Schedule is

available for interruptible storage provided by Gulf South. All

terms in quotes and/or initial capital letters as set forth in

this ISS Rate Schedule are defined herein or in the General Terms

and Conditions of this Tariff. Interruptible storage service is

available to any Customer provided that:

(i) Customer makes a valid request pursuant to Section 7.4 of

the General Terms and Conditions of this Tariff and executes

a ISS agreement with Gulf South, and

(ii) on the date injections or withdrawals are being made,

storage capacity and injections or withdrawals are available

in Gulf South's storage to provide service on an

interruptible basis.

(b) For purposes of determining availability of interruptible storage

service, Gulf South shall not be required to provide any requested

storage service:

(i) which would require the construction, modification,

expansion or acquisition of any facilities; provided,

however, that Gulf South may agree at its sole discretion,

to be exercised on a non-discriminatory basis as provided in

Section 24.5, to construct, modify, expand or acquire

facilities to enable it to perform this service;