Trunkline Gas Company

First Revised Volume No. 1

Effective Date: 09/01/1993, Docket: RS92- 25-005, Status: Effective

Sub Original Sheet No. 175 Sub Original Sheet No. 175 : Effective

GENERAL TERMS AND CONDITIONS

(Continued)

4. CURTAILMENT AND INTERRUPTION (Continued)

4.4 Transportation Supply

Curtailment related to insufficient receipts will occur when

Trunkline is actually experiencing a related threat to the

operational integrity of its system.

Trunkline will isolate the smallest area of its system possible

and make a diligent effort to determine the cause of insufficient

receipts. If Trunkline is unsuccessful in identifying delinquent

Shippers, then Trunkline will curtail all Shippers that do not

have confirmed receipts within that isolated area in the order

specified in Section 4.2 above.

Trunkline will continue the interruption with respect to others

only as long as the identity of the offending Shipper is unknown

or until its system has stabilized. Shippers with actual receipts

that are confirmed by Trunkline will not be subject to supply

curtailment for those receipts.

4.5 Storage

Storage curtailment, if necessary, would occur in the following

sequence:

(A) First, interruptible Storage service shall be curtailed,

commencing with service that at the time notice was given

was being charged a rate that is less than Trunkline's

Maximum Rate then in effect under this Tariff in sequence

starting with the lowest rate and then with Shipper's

service request date most proximate to the date notice is

given by Trunkline of the particular curtailment or

interruption; next in order shall be all other interruptible

service in sequence starting with Shipper's service request

date most proximate to the date notice is given by Trunkline

of the particular curtailment or interruption.

(B) Last, firm Storage service under Rate Schedules NNS-1,

NNS-2 and FSS shall be curtailed pro rata, based on

scheduled Quantities, regardless of rate or service request

date.