Natural Gas Pipeline Company Of America

Seventh Revised Volume No. 1

Effective Date: 04/18/2008, Docket: RP08-319-000, Status: Effective

Original Sheet No. 132 Original Sheet No. 132 : Pending

RATE SCHEDULE IBS

INTERRUPTIBLE BALANCING SERVICE

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MDQ. The MDQ under an IBS Agreement must also be consistent with the

point MDQ under the linked transportation Agreement. Subject to the

above limitations, the MDQ under the IBS Agreement shall be as

specified by Shipper in its request for service; provided, however,

that the MDQ may not exceed the higher of: (i) the highest daily

usage served by Natural at the end-use facility or facilities during

the prior twelve (12) months; or (ii) the highest daily usage which

will be served by Natural at such end-use facility or facilities

during the ensuing twelve (12) months as reasonably projected by

Shipper. The MDQ shall be redetermined at the request of either

Shipper or Natural no sooner than six (6) months after the prior MDQ

determination, or at any time by mutual agreement. In submitting

nominations under the linked transportation Agreement, Shipper must

separately identify the volumes attributed to the end-use facility or

facilities covered by the IBS Agreement.

Shipper shall specify the end-use facility or

facilities for which imbalance management service is to be provided

under the IBS Agreement. The IBS Agreement shall cover a single end-

use facility except to the extent aggregation is permitted under

Section 7(c) of this Rate Schedule IBS. Shipper shall also specify

the Delivery Point for each such end-use facility. That Delivery

Point must also be a point of delivery (either primary or secondary)

available under the linked transportation Agreement, but may not be a

Central Delivery Point, except to the extent permitted under Section

7(c) of this Rate Schedule IBS. The location of such Delivery

Point(s) must be consistent with the location of the end-use facility

or facilities. Electronic measurement equipment must be in place and

the information must be accessible to Natural such that real time

data on deliveries to the end-use facility or facilities are

available to Natural.

(1) The request shall contain a statement either:

(i) that the service under the IBS Agreement will be used for the end-

use facility or facilities identified in the request directly connected

to Natural's system; or (ii) that service under the IBS Agreement will

be used for the end-use facility or facilities identified in the request

behind a Delivery Point or Points and the requirements of (2) are or

will be met. If not directly connected to Natural, the end-use facility

or facilities must be directly connected to facilities of the point

operator which are interconnected with Natural's system facilities.