Northern Natural Gas Company

Fifth Revised Volume No. 1

Effective Date: 11/01/2003, Docket: RP03-398-011, Status: Effective

Second Revised Sheet No. 202 Second Revised Sheet No. 202 : Effective

Superseding: First Revised Sheet No. 202

GENERAL TERMS AND CONDITIONS

1. DEFINITION OF TERMS

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Except where the context expressly states another meaning, the

following terms shall have the following meanings whenever used in

this Tariff:

Alternate Receipt Point. The term "Alternate Receipt Point" shall

mean all other receipt points of Northern system other than those

defined as Primary Receipt Points.

Billing Day. The term "billing day" shall mean the period of

twenty-four (24) consecutive hours beginning at 9:00 a.m. central

clock time and ending at 9:00 a.m. central clock time the following

twenty-four (24) hour period.

Billing Month. The term "billing month" shall mean the period from

9:00 a.m. central clock time the 1st day of the calendar month to

9:00 a.m. central clock time the 1st day of the succeeding calendar

month.

British Thermal Unit (Btu). The term "British thermal unit" ("Btu")

shall mean the amount of heat required to raise the temperature of

one pound of water from fifty-nine degrees Fahrenheit (59 F) to sixty

degrees Fahrenheit (60 F).

Business Day. The term "Business Day" shall mean Monday through

Friday, excluding Federal Banking Holidays.

Bypassing Small Customers. The term "Bypassing Small Customers"

shall mean Small Customers that have reduced their entitlement on

Nothern's system that is serving existing load and that thereafter

serve that existing load with incremental or new entitlement on

another pipeline. Entitlement shall refer to the total TF12 Base,

TF12 Variable, TF5, TFX of five months or longer and GST service that

is in effect at the time that any reduction is made.

Calendar Year. The term "calendar year" shall mean a period

beginning on the first day of January of each year and ending on the

first day of the succeeding January.

Central Clock Time (CCT). The term "central clock time" or "CCT"

shall mean Central Standard time throughout the year, as adjusted for

Central Daylight time.