Columbia Gas Transmission LLC

Third Revised Volume No. 1

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Effective Date: 03/03/2009, Docket: RP09-340-000, Status: Effective

Original Sheet No. 344 Original Sheet No. 344





17.2 Pipeline-Specific Operational Standards for Issuance of OFOs.


(a) If, in Transporter's judgment, impending operating conditions will cause the delivery pressure to

one or more Shippers to drop below the pressure provided in the Service Agreement(s) of the Shipper(s),

Transporter may immediately issue an Operational Flow Order pursuant to this Section requiring that deliveries

under all of Transporter's Rate Schedules be made on a basis consistent with the flow rates and limitations

set forth in the Operational Flow Order. If only one segment of Transporter's system will be affected by low

pressure, the Operational Flow Order shall be limited to that segment of the system and shall be so stated.

For the duration of this Operational Flow Order, increases in scheduled delivery quantities within affected

segments of Transporter's system will be made on a prospective basis only.


(b) Transporter shall have the right to issue Operational Flow Orders requiring Shippers to deliver

gas to Transporter at Shipper's primary receipt points under Shipper's FTS, NTS, NTS-S, TPS, or GTS Service

Agreement with Transporter. This right shall also apply to Shippers which have acquired capacity via

Transporter's capacity release and assignment procedures.


(c) Proper utilization of Transporter's storage facilities is crucial to Transporter's ability to

provide firm services to Shippers. Therefore, in the event Transporter determines that action is necessary to

prevent damage to the integrity of its storage fields or to ensure the operating performance of Transporter's

system, including its storage fields, Transporter may issue an Operational Flow Order as follows to preserve

its ability to provide firm service to Shippers:


(1) Transporter may issue an Operational Flow Order limiting all Shippers to receipts and

deliveries at primary points.


(2) Transporter may issue an Operational Flow Order requiring each Shipper at a given

receipt point to fully utilize all of its non-storage receipt point firm transportation capacity on

Transporter prior to being entitled to withdraw quantities from storage.


(3) Transporter may issue an Operational Flow Order limiting or prohibiting transfers of

injection rights, withdrawal rights, or storage inventory by Shipper where:


(i) Transporter's storage pool deliverabilities, in the aggregate or in any

segment, have declined to such a level that, in Transporter's discretion, a transfer may

jeopardize Transporter's ability to perform firm service to any Shipper; or


(ii) The transfer could cause Transporter to issue an Operational Flow Order under

another part of this section.


(4) Transporter may issue an Operational Flow Order directing a Shipper to correct

imbalances or operate within the limitations on transportation, storage, injections or withdrawals as

set forth in the Shipper's Service Agreement or the applicable Rate Schedule.


(d) In addition to the other provisions of this Section 17 that may be applicable to Shippers under

the NTS and NTS-S Rate Schedules, Transporter may issue an Operational Flow Order to a Shipper under the NTS

and NTS-S Rate Schedules to require Shipper to replenish its Gas Supply Quantity (GSQ) earlier than required

by NTS and NTS-S Rate Schedules Section 2(f) in order for Transporter to provide no-notice service, replace

borrowed gas or to preserve system integrity.


(e) Transporter may, on a nondiscriminatory basis, issue such other reasonable Operational Flow

Orders as may be required for the purposes set forth in this Section in order to provide the services

contemplated by this Tariff. For example, but without limitation, Transporter may issue an OFO directing a

Shipper to take certain actions to enable Transporter to adequately respond to the following type of exigent

circumstances occurring on Transporter's system:


(1) Freezing of wells or pipelines or other essential equipment to the extent that such

freezing damages or destroys or otherwise impairs Transporter's essential facilities or Transporter's

ability to monitor and control Transporter's essential facilities or results in the loss of supplies of

natural gas from upstream transporters, Transporter's storage fields, or producers of natural gas.