Great Lakes Gas Transmission Limited Partner

Second Revised Volume No. 1

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Effective Date: 08/01/2007, Docket: RP07-490-000, Status: Effective

Eighth Revised Sheet No. 8 Eighth Revised Sheet No. 8 : Effective

Superseding: Seventh Revised Sheet No. 8







1.1 "Agreement" or "Service Agreement" shall mean the Transportation Service Agreement, Master

Service Agreement, or Market Center Service Agreement executed by the Shipper and Transporter

and any exhibits, attachments and/or amendments thereto.


1.2 "British thermal unit (Btu)" shall mean the defined International Tables British Thermal Unit

(Btu International Tables). The energy value rounded to 1 MMBtu = 1.055056 Gj. (Btu is

measured on a dry basis at 14.73 psia, at 60 degrees Fahrenheit.)


1.3 "Business Day" shall be defined as Monday through Friday, excluding Federal Banking Holidays for

transactions in the U.S., and similar holidays for transactions occurring in Canada and Mexico.


1.4 "C.C.T." shall mean Central Clock Time, representing the time in effect in the Central Time Zone

of the United States at the time a transaction occurs, regardless of whether that time may be

Standard Time or Daylight Savings Time as those terms are commonly known and understood.


1.5 "Commission" and "FERC" shall mean the Federal Energy Regulatory Commission or any successor

regulatory authority having jurisdiction.


1.6 "Contract Year" shall be a period of twelve consecutive Months beginning on the first Day of



1.7 "Cubic Foot" shall mean the volume of gas which occupies one cubic foot when such gas is at a

temperature of 60 degrees Fahrenheit, and at a pressure of 14.73 pounds per square inch



1.8 "Dekatherm" and "(Dth)" shall mean a quantity of gas containing one million (1,000,000) Btu's.


1.9 "Expedited Period of Gas Flow" and ("EPF")shall mean the minimum period of time in hours in

which a shipper may receive its full MDQ under Rate Schedule EFT, as represented by the term



1.10 "Equivalent Quantity" - shall mean a quantity of Gas containing an amount of Dekatherms equal

to the amount of Dekatherms received by Transporter from Shipper for Transportation.


1.11 "Gas" shall mean pipeline quality gas that complies with the quality provisions as set forth in

the Section 8 of the General Terms and Conditions of this FERC Gas Tariff, Second Revised Volume

No. 1.


1.12 "Gas Day" shall mean a period beginning at 9 a.m. Central Clock Time (C.C.T.) and ending at 9

a.m. (C.C.T.) on the next calendar day.


1.13 "GLConnect" shall mean the transactional portion of Transporter's Web site (Customer Activities

Web Site) maintained in accordance with Section 24 of the General Terms and Conditions of

Transporter's FERC Gas Tariff, Second Revised Volume No. 1.


1.14 "Heating Value" shall mean the gross heating value, measured in BTU's, resulting from the ideal

combustion of one (1) cubic foot of anhydrous gas at a temperature of 60 degrees Fahrenheit and a

constant pressure of 14.73 pounds per square inch where all the water formed by the reaction

condenses to liquid.


1.15 "Hour" shall mean a period of sixty (60) consecutive minutes beginning at the top of the hour,

e.g., 9:00, or such other period of sixty consecutive minutes mutually acceptable to Transporter

and Shipper.


1.16 "Loan" or "Loan Service" - shall mean an advance by Transporter to Shipper at a Market Center

Point of a quantity of Gas nominated by Shipper as provided for under Transporter's Rate

Schedule MC.