Great Lakes Gas Transport, L.L.C.

Second Revised Volume No. 1

Effective Date: 11/01/1993, Docket: RP97-157-006, Status: Effective

Original Sheet No. 104 Original Sheet No. 104 : Effective

GENERAL TERMS AND CONDITIONS

FOR TRANSPORTATION SERVICE

(cont'd)

3. STANDARDS FOR MEASUREMENT AND TESTS (cont'd)

3.6 The accuracy of all measuring equipment shall be verified at reason-

able intervals, but the operating party shall not be required to

verify the accuracy of such equipment more frequently than once in any

thirty (30) day period. In the event the nonoperating party notifies

the operating party that the nonoperating party desires a special test

of any measuring equipment, the operating party shall cooperate to

secure a prompt verification of the accuracy of such equipment. The

expense of any such special test requested by the non-operating party

shall be borne by the non-operating party if the measuring equipment

tested is found not to be in error by more than 2%.

3.7 If, upon test, any measuring equipment is found not to be in error in

the aggregate by more than 2%, previous recordings of such equipment

shall be considered accurate in computing deliveries of gas, but such

equipment shall be adjusted at once to record accurately. If, upon

test, any measuring equipment shall be found in the aggregate to be

inaccurate by an amount exceeding 2% at a recording corresponding to

the average hourly rate of flow for the period since the last

preceding test,such equipment shall be adjusted at once to record

accurately, and any previous recordings of such equipment shall be

corrected to zero error for any period which is known definitely, but

in case the period of error is not known or agreed upon, such

correction shall be for a period extending over one-half of the time

elapsed since the date of the last test, not exceeding a correction

period of sixteen (16) days. In the event a meter is out of service

or registering inaccurately, the quantities of gas delivered during

such period shall be determined as follows:

(1) By using the registration of any check meter or meters,if

installed and accurately registering; or in the absence of

subsection (1),

(2) By correcting the error if the percentage of error is ascer-

tainable by calibration, tests or mathematical calculation; or in

the absence of both subsections (1) and (2), then,

(3) By estimating the quantities of gas delivered from deliveries

during periods under similar conditions when the meter was

registering accurately.