National Fuel Gas Supply Corporation

Fourth Revised Volume No. 1

Effective Date: 08/01/1997, Docket: RP97-398-000, Status: Effective

Original Sheet No. 340 Original Sheet No. 340 : Effective

GENERAL TERMS AND CONDITIONS

4. MEASURING EQUIPMENT (Cont'd.)

4.4 Installation

All installations of measuring equipment, applying to or

affecting receipts or deliveries by Transporter, shall be made in

such manner as to permit an accurate determination of the

quantity of gas delivered and ready verification of the accuracy

of measurement. Reasonable care shall be exercised in the

installation, maintenance and operation of any pressure

regulating equipment so as to avoid, as far as practicable, any

inaccuracy in the determination of the volume of gas delivered

hereunder.

4.5 Access to Meters and Records

Transporter and Shipper or Operator shall have the right to be

present at the time of any installing, reading, cleaning,

changing, repairing, inspecting, testing, calibrating, or

adjusting done in connection with the other's equipment used in

measuring or checking receipts and deliveries of gas. The

records from such equipment shall remain the property of their

owner, but upon request, each will submit to the other its

records and/or charts, together with calculations therefrom, for

inspection and verification, subject to return within ten (10)

days after receipt thereof.

4.6 Measurement Equipment Failures

In the event measurement equipment is out of service, or

registering inaccurately, the quantity and/or volume of gas

received or delivered by Transporter shall be estimated:

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

other measurement equipment if installed and accurately

registering, or in the absence of "(a)";

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

tainable by calibration, test or mathematical calculation

or, in the absence of both "(a)" and "(b)", then;

reference to receipts or deliveries during periods under

similar conditions when the meter was registering

accurately.