Great Lakes Gas Transmission Limited Partner

Second Revised Volume No. 1

Effective Date: 03/08/1999, Docket: RP99-220-000, Status: Effective

Third Revised Sheet No. 55 Third Revised Sheet No. 55 : Effective

Superseding: SUBSTITUTE SECOND REVISED SHEET NO. 55

RATE SCHEDULE FT

FIRM TRANSPORTATION SERVICE

___________________________

(continued)

4.4 Changes in Rates

The rates specified in this FERC Gas Tariff, Second Revised Volume No. 1, for the

service performed by Transporter for Shipper under this Rate Schedule FT will be in

effect until replaced or superseded by some other legally effective rate applicable

to that service. Transporter shall have the unilateral right to file changes in

rates for service rendered under this tariff with the Commission, and collect those

in accordance with Section 4 of the Natural Gas Act. Shipper agrees to pay the

effective rate on file with the Commission, including increases thereto, if any, the

parties recognizing that the Commission has jurisdiction to determine in appropriate

proceedings the just and reasonable rates to be charged for service hereunder.

Nothing herein contained, however, shall be construed to deny Shipper any rights it

may have under the Natural Gas Act, as amended, or as that act may be amended,

including the right to participate fully in Commission proceedings by intervention

or otherwise, and to protest or otherwise contest increased rates in whole or in part.

Notwithstanding any provisions of the Agreement to the contrary, if in order to comply

with or by reason of any present or future law or rule, regulation or order of any

governmental body, the basis or method of measurement of gas delivered is changed,

then the price per Dth for gas transported shall be adjusted to compensate for the

change in the basis or method of measurement, to the end that the total amount of

money payable for quantities of gas transported according to the measurement provisions

set forth in the General Terms and Conditions of this FERC Gas Tariff, Second Revised

Volume No. 1, shall remain unaffected by the change of basis or method of measurement.