Northern Border Pipeline Company

First Revised Volume No. 1

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Effective Date: 01/16/2008, Docket: RP08-128-000, Status: Effective

Thirteenth Revised Sheet No. 213A Thirteenth Revised Sheet No. 213A : Effective

Superseding: Twelfth Revised Sheet No. 213A

GENERAL TERMS AND CONDITIONS

1. DEFINITIONS (Continued)

o The term "Operational Balancing Agreement" (OBA) shall mean the

contract between Company and party which specifies the procedures

to manage operating variances at an interconnect. [2.2.1]

o The term "Operational Flow Order" (OFO) shall be an order

issued to alleviate conditions, inter alia, which threaten or

could threaten the safe operations or system integrity of

Company's system or to maintain operations required to

provide efficient and reliable service. Whenever Company

experiences these conditions, any pertinent order shall be

referred to as an OFO. [1.2.6]

o The term "Operational Impact Area" shall mean the largest

possible area(s) on Company's system in which imbalances have

a similar operational effect. For imbalance resolution,

Company shall designate its entire pipeline system as a

single Operational Impact Area. [2.2.2]

o The term "Out-of-Direction" shall mean a nomination line item

that has a nominated flow direction opposite of the

contracted Transportation Path direction.

o The term "Overdelivery" shall mean the quantity of gas that

results when Shipper delivers or causes to be delivered to

Company a quantity of gas which, less Shipper's share of

estimated Company Use Gas, is greater than the quantity of

gas delivered out of Company's system for Shipper's account.

o The term "Package ID" shall mean a NAESB WGQ defined mutually

agreeable data element provided to differentiate between

discrete business transactions. [1.2.5]