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. 145 Original Sheet No. 145 : Pending

RATE SCHEDULE IBS

INTERRUPTIBLE BALANCING SERVICE

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(2) Natural will allow such aggregation with a

common agent for the end-use facilities, provided that the other

requirements of aggregation are satisfied. Such an agency

relationship would be subject to satisfaction of the conditions set

out in Section 8.9 of the General Terms and Conditions of this Tariff

and the following more specific conditions: the agent must meet the

same creditworthiness standards as a Shipper, Natural can rely upon

representations by the agent until Natural receives written notice

that the agency relationship has been terminated and aggregation will

cease to be effective as of the date on which there is no longer a

common agent.

(3) If the above criteria are met, Natural will

permit the aggregation under a single IBS Agreement of up to five (5)

end-use facilities at different points. In addition, if all the

above criteria are met, Natural will aggregate up to five (5) end-use

facilities behind a single Central Delivery Point under a single IBS

Agreement. The aggregated end-use facilities shall be accounted for

in the aggregate, by use of a paper point. A Shipper may not

aggregate in a single IBS Agreement both directly connected end-use

facilities and end-use facilities which are not directly connected to

Natural or which are behind a Central Delivery Point.

8. OVERRUN SERVICE

Upon request of Shipper, Natural may (but is not obligated to)

provide service hereunder in excess of Shipper's maximum daily access

volume under the IBS Agreement as determined under Section 6(a) hereof

or Shipper's maximum allowed cumulative IBS Balance as determined under

Section 6(f) hereof when, in Natural's reasonable judgment, its line

pack capability or offsetting Access Requests will permit such balancing

receipt or delivery without impairing the ability of Natural to meet its

firm or other higher priority interruptible obligations, it being

understood that Natural is not providing a supply or storage service

under this Rate Schedule IBS. In granting requests for authorized

overruns, Natural shall act in a manner consistent with the overrun

service priorities set out in the General Terms and Conditions of this

Tariff. Except for authorized overruns as reflected in confirmation of

an Access Request, for which Shipper shall pay the applicable rate set

out in the rate sheets of this Tariff, Shipper shall pay Natural the

charges for unauthorized overrun set out in Section 12.2(a)(1) of the

General Terms and Conditions of this Tariff if balancing volumes in the

direction of swing specified in the Access Request under an IBS

Agreement exceed the volumes specified in the Access Request or,