Northern Border Pipeline Company

First Revised Volume No. 1

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Effective Date: 05/01/2029, Docket: RP01-288-000, Status: Accepted

Fourth Revised Sheet Number 211 Fourth Revised Sheet Number 211 : Superseded

Superseding: Third Revised Sheet Number 211

GENERAL TERMS AND CONDITIONS

1. DEFINITIONS (Continued)

o The term "Gas Day" shall mean a period beginning and ending

at 9:00 a.m., Central Clock Time. The reference date for any

day shall be the date of the beginning of such day.

o The term "General Terms and Conditions" shall mean, at any

time, these General Terms and Conditions as from time to time

amended or supplemented.

o The term "GISB" shall mean Gas Industry Standards Board.

o The term "GISB EBB/EDM" shall be the term used to describe

the GISB standardized electronic interchange of information

for Customer Activity web site presentations. GISB EBB/EDM

is communicated between trading partners over the Internet

using the GISB Electronic Delivery Mechanism for GISB

EBB/EDI. [4.2.13/v1.4]

o The term "GISB EDI/EDM" shall be the term used to describe

ANSI ASC X12 computer-to-computer Electronic Data Interchange

(EDI)of information in files as mapped from the x.4.z GISB

standards in the GISB Implementation Guides and communicated

between trading partners over the Internet using the GISB

Electronic Delivery Mechanism (EDM). [4.2.11/v1.4]

o The term "GISB FF/EDM" shall be the term used to describe a

standardized flat file electronic data interchange of

information in files as mapped from the x.4.z GISB standards.

GISB FF/EDM is communicated between trading partners over the

Internet using the GISB Electronic Delivery Mechanism (EDM).

[4.2.12/v1.4]

o The term "gross heating value", shall mean gross heating

value dry as determined by the total calorific (heating)

value, in British thermal units, Btu, of the amount of any

dry gas which would occupy a volume of one standard cubic

foot, based on 14.73 Psia and 60 degrees F. The total, or

gross, calorific value represents the Btus evolved by the

complete combustion, at constant pressure, of one standard

cubic foot of any dry gas with air, the temperature of the

gas, air, and products of combustion being 60 degrees F, and

all water formed by the combustion reaction being condensed

to the liquid state.