Portland Natural Gas Transmission System

Original Volume No.1

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Effective Date: 02/11/1999, Docket: CP96-248-009, Status: Effective

Original Sheet No.303 Original Sheet No.303 : Superseded






2.14 General Terms and Conditions: shall mean the General Terms and

Conditions of this Tariff, as they may be amended from time to time.


2.15 Intra-day Nomination: shall mean a Nomination submitted after the

deadline which effective time is no earlier than the beginning of the gas Day

and runs through the end of that gas Day. Intra-day Nominations may be used

to nominate new supply or market. Shippers receiving service under any of

Transporter's rate schedules may make Intra-day Nomination which can be used

to request increases or decreases in total flow, changes to Receipt Points, or

changes to Delivery Points of scheduled gas for less than one Day. Intra-day

Nominations shall be stated in daily quantities, indicating the revised total

flow for the 24 hour period commencing at 9:00 am Central Clock Time, and

shall include an effective date and time. Such Nominations do not replace the

remainder of a standing Nomination which may extend past that gas Day.


2.16 Maximum Contract Demand: shall mean the sum of the Receipt Point

Maximum Daily Quantity or Quantities, as set forth in an executed Gas

Transportation Contract under Rate Schedule FT.


2.17 Maximum Daily Quantity or "MDQ": shall mean the maximum number of

DTH (adjusted by the applicable Measurement Variance Quantity), specified in a

Gas Transportation Contract in accordance with one or more Rate Schedules

herein, that Transporter is obligated to transport Daily for Shipper to a

specified Delivery Point or from a specified Receipt Point.


2.18 Mcf: shall mean 1,000 Cubic Feet of Gas.


2.19 Measurement Variance Quantity: shall mean the product, rounded to

the nearest DTH, of the applicable Measurement Variance Factor and the Receipt

Point Scheduled Quantity in the case of a positive Measurement Variance

Factor, or the Delivery Point Scheduled Quantity in the case of a negative

Measurement Variance Factor.


2.20 Measurement Variance Factor: shall mean the applicable percentage,

determined on a Monthly basis pursuant to this Section 2.20, to account for

and recover lost and unaccounted-for gas on the System. The Monthly

percentages shall be within the minimum and maximum percentages set forth on

the currently effective Sheet No. 6 of this Tariff for the applicable Rate

Schedule. At least ten (10) days prior to the beginning of each Month,

Transporter will publish the Measurement Variance Factor via its electronic

bulletin board. The Monthly Measurement Variance Factor shall be calculated

in the following manner: