Discovery Gas Transmission LLC

Original Volume No. 1

Effective Date: 11/10/1997, Docket: CP96-712-002, Status: Effective

Original Sheet No. 132 Original Sheet No. 132 : Effective

6.4 CHANGES IN DAILY SCHEDULED QUANTITIES - After Shipper has

submitted a standard nomination and Transporter has

confirmed and scheduled the quantities of Gas to be

transported, such quantities will remain scheduled until

the ending date specified in the nomination unless:

a. A prospective nomination is received from Shipper

requesting a change in previously confirmed and

scheduled quantities; or

b. A prospective nomination is required by Transporter

in accordance with Subsection 5.3 of the General

Terms and Conditions; or

c. Transportation service is curtailed or interrupted

in order to provide service for a higher priority

service or Shipper; or

d. The designated contact persons with upstream and

downstream Operators who have the authority to

verify and confirm nominated Gas quantities or

require a reduction of the confirmed and scheduled

quantities; or

e. Receipts or deliveries at a particular Receipt Point

or Delivery Point are outside the established

tolerance levels specified in an Effective OBA; or

f. Adjustments of receipts or deliveries at a

particular Receipt Point or Delivery Point are

required as specified in an OFO; or

g. Capacity used in providing service is inadequate as

a result of a force majeure event, overbooking of

capacity, or an operational limiting event.

h. Other reasons required or permitted under this FERC

Gas Tariff.