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. 277 Original Sheet No. 277 : Pending

GENERAL TERMS AND CONDITIONS

----------------------------

1.10 HEATING VALUE

The term "heating value" shall mean the number of

Btus per cubic feet of gas at the base condition of 14.73 psia

60 degrees Fahrenheit dry. The Btu value will be determined

utilizing the complete actual composition of the gas according

to the methods in GPA Standard 2172-96, titled "Calculation of

Gross Heating Value, Relative Density and Compressibility Factor

for Natural Gas Mixtures from Compositional Analysis," and

corrected to the base conditions. For reporting purposes, Btu

conversion factors will be reported to not less than three (3)

decimal places and Pressure Base conversion factors will be

reported to not less than six (6) decimal places. For

calculation purposes, not less than six (6) decimal places will

be used for both conversion factors.

1.11 INTERACTIVE WEBSITE

The term "Interactive Website" shall mean the

interactive internet web site maintained by Natural for

communication regarding its transportation and storage service

in accordance with applicable Commission Regulations and GISB

standards, as more fully described in Section 17 of these

General Terms and Conditions.

1.12 MONTH

A period of one calendar month commencing on the

first day of such month; provided, however, that the term

"month" may be established as some other equivalent period by

mutual agreement between Shipper and Natural or between Natural

and the operator of any Receipt Point or Delivery Point, as

applicable.

1.13 NATURAL GAS

The term "natural gas" shall mean any mixture of

hydrocarbons or of hydrocarbons and non-combustible gases, in a

gaseous state, consisting essentially of methane.