Horizon Pipeline Company, L.L.C.

Original Volume No. 1

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Effective Date: 04/18/2002, Docket: CP00-129-001, Status: Effective

Original Sheet No. 213 Original Sheet No. 213 : Effective

GENERAL TERMS AND CONDITIONS

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(b) CAPACITY

(1) Capacity available for firm service is

communicated to requestors of that service under the provisions of

the applicable firm Rate Schedule. The general availability of

firm capacity is also communicated by Horizon's DART system which

is described in Section 14 of these General Terms and Conditions.

(2) Capacity available for interruptible

services is communicated to holders of interruptible Agreements by

representatives of Horizon in response to the Shippers'

nominations for service. The nomination and confirmation

procedure is detailed in Section 7 of these General Terms and

Conditions. The general availability of interruptible capacity is

also communicated by Horizon's DART system, which is described in

Section 14 of these General Terms and Conditions.

(3) When available capacity is affected by

construction projects or unforeseen conditions, Horizon

communicates such information primarily via DART to its Shippers.

Horizon also uses letters or telephone calls to communicate

capacity information when such means are appropriate.