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. 136 Original Sheet No. 136 : Pending

RATE SCHEDULE IBS

INTERRUPTIBLE BALANCING SERVICE

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(d) Where a Shipper has agreed to pay a Negotiated Rate

or a rate under a Negotiated Rate Formula, the rates assessed

hereunder shall be governed by Section 49 of the General Terms and

Conditions of this Tariff. A request for service at a Negotiated

Rate or a rate under a Negotiated Rate Formula shall specify the

Negotiated Rate or Negotiated Rate Formula on which the Shipper is

willing to agree.

5.2 (a) Shipper shall reimburse Natural within five (5)

days after costs have been incurred by Natural for all fees required

by the Commission or any regulatory body including, but not limited

to, filing, reporting, and application fees, to the extent such fees

are specifically related to service for that Shipper hereunder and

are not generally applicable fees.

(b) If Natural constructs, acquires or modifies any

facilities to perform service hereunder, then as specified in an

agreement between the parties either:

(i) Shipper shall reimburse Natural for the cost

of such facilities or facility modifications as described in the

General Terms and Conditions of this Tariff; or

(ii) Natural shall assess a monthly charge

reflecting such facility costs.

5.3 Shipper shall pay any transportation charges associated

with effectuating the receipt or delivery of gas hereunder pursuant

to the FTS, FTS-G or ITS Agreement to which Shipper's IBS Agreement

is linked, including any applicable Fuel Gas or Gas Lost and

Unaccounted For, in accordance with the terms of that separate linked

transportation Agreement. Shipper shall pay a transportation charge

and related Fuel Gas and Gas Lost and Unaccounted For once, but only

once, under the linked transportation Agreement associated with any

IBS Balance as defined in Section 6(b) of this Rate Schedule IBS.

Shipper shall not pay any charge associated with IBS Payback except

to the extent transportation charges under the linked transportation

Agreement are required to satisfy the prior sentence. Any ACA, RD&D,

transition cost charges or other generally applicable surcharges

shall also be assessed under such linked transportation Agreement and

no additional such charges shall be assessed under Rate Schedule IBS.