Columbia Gulf Transmission Company

Second Revised Volume No. 1

Effective Date: 11/02/1998, Docket: RP98-427-000, Status: Effective

Original Sheet No.156A Original Sheet No.156A : Effective

GENERAL TERMS AND CONDITIONS (Continued)

(k) When a previously confirmed and scheduled quantity is altered, notification of such

alteration should be provided to all of the parties that are affected. Applicable notification(s)

of such alterations should be provided to the affected parties reasonably proximate in time to the

time during which the event causing the alteration was acted upon by Transporter. With respect

to the implementation of this process via the 1.4.X GISB standards, Transporter and the Confirming

Party should send the applicable document(s) to the applicable party(ies) no later than the next

time they are slated to communicate confirmations or scheduled quantities. The Confirming Party

has an obligation to notify Transporter within the established GISB deadlines when a previously

confirmed and scheduled quantity is altered. Affected parties to be notified by Transporter are:

(1) Confirming Party in a Confirmation Response (or unsolicited Confirmation Response as

applicable) document by Transporter;

(2) Confirming Party in a Request for Confirmation document by Transporter;

(3) Shipper in a Scheduled Quantity document by Transporter.

(l) When a Transporter or Confirming Party receive a Confirmation Response document by the

conclusion of a given quarter hour period, the Confirmation Party by the conclusion of a given

quarter hour period, the Transporter or Confirming Party will send to the partyþs designated site

a corresponding Confirmation Response Quick Response document by the conclusion of the subsequent

quarter hour period. The quarter hour periods will be defined to begin on the hour and at 15, 30,

and 45 minutes past the hour. A given quarter hour will contain all transactions whose receipt

time is less than the beginning of the subsequent quarter hour.

6.4 Shipper's Notice of Changes. Except for reasons of force majeure, as described at Section 15

(Force Majeure) of the General Terms and Conditions, Shipper shall notify Transporter or cause

Transporter to be notified at least 24 hours in advance of any anticipated material change in the

daily quantity of gas Shipper desires to deliver or to cause to be delivered to Transporter for

transportation under Transporter's Rate Schedules. If an unanticipated or a force majeure event

causes a material change in the quantity of gas Shipper will deliver or cause to be delivered to

Transporter for transportation, Shipper shall notify or cause Transporter to be notified as soon as

possible after occurrence of that event. In the event of such material changes, Shipper shall tender

or cause to be tendered to Transporter such estimated daily quantities at flow rates as close as

possible to uniform hourly rates. Departures by Shipper from the daily quantities that it has

notified Transporter it intends to tender to Transporter under a Rate Schedule shall be kept to a

minimum and in no event shall

exceed the amount permitted by operating conditions.

6.5 Scheduling Under Individual Rate Schedules. To the extent that individual Rate Schedules set

forth nomination scheduling requirements inconsistent with the requirements set forth in this Section,

the applicable Rate Schedules are controlling and Shipper shall satisfy the requirements set forth in

those Rate Schedules. To the extent that applicable Rate Schedules set forth scheduling requirements

in addition to, but not inconsistent with, the provisions of this Section, Shipper shall satisfy the

requirements of both the individual Rate Schedules and this Section.