El Paso Natural Gas Company

Second Revised Volume No. 1A

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Effective Date: 04/01/2010, Docket: RP10-454-001, Status: Effective

Third Revised Sheet No. 273 Third Revised Sheet No. 273

Superseding: Second Revised Sheet No. 273









Interruptible transportation service under this FERC Gas Tariff shall be

scheduled when, and to the extent that, Transporter determines that

capacity is available in Transporter's existing facilities, which capacity

is not subject to a prior claim by another customer or another class of

service under a pre-existing contract, service agreement or certificate.

Available interruptible capacity shall be allocated by Transporter on an

economic basis, as determined by Transporter, and interruptible

transportation service hereunder shall be provided in accordance with such



The provisions of this Section 8.2 shall also be applicable to

interruptible service under special rate schedules contained in

Transporter's Volume No. 2 Tariff.


(a) A valid request for interruptible transportation service under this

FERC Gas Tariff shall be in accordance with the provisions

contained in Section 4.


(b) Interruptible transportation service provided under this Volume No.

1A Tariff is subject to and conditioned upon the availability of

capacity sufficient to provide the transportation service without

detriment or disadvantage to Transporter's firm transportation



(c) On any day that sufficient capacity is not available in

Transporter's system to provide transportation for all gas

nominated and confirmed under interruptible TSAs, Transporter shall

allocate its available capacity among such Shippers on an economic

basis pursuant to Section 6.2 of the GT&C.


(d) Transporter shall not be required to perform or continue service on

behalf of any Shipper that fails to comply with the terms contained

in the GT&C, in particular, but without limitation, Sections 8.2,

4, and 5.7 and any and all terms of the applicable rate schedule

and/or the terms of Shipper's TSA with Transporter.


(e) Upon request of Transporter, Shipper shall from time to time submit

estimates of hourly, daily, monthly and annual quantities of gas to

be transported, including peak day requirements.