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. 337 Original Sheet No. 337

GENERAL TERMS AND CONDITIONS (Cont'd)

16. INTERRUPTIONS OF SERVICE

Interruptions of service for purposes of this Tariff (i) shall include but not be limited to

decreasing, suspending, or discontinuing the receipt or delivery of gas, and (ii) shall be effected by

Transporter in accordance with the provisions of this Section.

16.1 Interruptions of Firm Services.

(a) If due to force majeure, other unforeseen conditions on Transporter's system, or operating

conditions (such as, but not limited to, performing routine maintenance, making modifications, tests or

repairs to Transporter's pipeline system or protection of the integrity and performance capability of its

storage and transmission facilities), the gas available for delivery from Transporter's system or portion

thereof is temporarily insufficient to meet all of Transporter's authorized firm services on any day, then

Transporter, upon providing as much notice as possible, shall interrupt all such services in accordance with

the priorities set forth at Section 16.4 below. Transporter shall notify Shipper of interruptions by

Electronic Notice Delivery to Shipper's representative, and shall do so 72 hours in advance in the case of

interruptions due to routine maintenance. Shipper must make available a representative to maintain 24-hour

contact with Transporter to receive such notices. Such a representative shall have a requisite authority and

capability to make any adjustments required as a result of Transporter's notice of interruption. Transporter

will specify in interruption orders issued pursuant to this Section the: (i) date and time by which Shipper

must comply; and (ii) the revised quantity (if any) authorized to flow (Lowered Quantity).

(b) Where Transporter's ability to render service is impaired in a particular segment of

Transporter's system, interruptions of firm services shall be effected, in accordance with Paragraph (a)

above, only for those Shippers served through the segment(s) of Transporter's system in which service has been

impaired.

(c) A Shipper that fails to interrupt its firm service as directed by Transporter shall be subject

to penalties as set forth at Section 19 (Penalties) of the General Terms and Conditions.

16.2 Interruptions of Interruptible Service.

(a) Transporter may interrupt any interruptible services (i) for the reasons set forth in Section

16.1 above, or (ii) for the purpose of making capacity available for firm services. Whenever Transporter

determines that such interruption is appropriate, Transporter shall do so in accordance with the priorities

set forth at Section 16.4 below.

(b) Where Transporter's ability to render service is impaired in a particular segment of

Transporter's system, interruptions of interruptible services shall be effected, in accordance with paragraph

(a) above, only for those Shippers served through the segment(s) of Transporter's system in which service has

been impaired.