Northwest Pipeline Corporation

First Revised Volume No. 1-A

Effective Date: 10/01/1992, Docket: RP92-224-000, Status: Effective

Second Revised Sheet No. 420 Second Revised Sheet No. 420 : Effective

Superseding: First Revised Sheet No. 420

GENERAL TRANSPORTATION TERMS AND CONDITIONS

(Continued)

14. OPERATING CONDITIONS (Continued)

14.2 Nomination Procedure for Interconnecting Pipelines. Transporter

is interconnected to other pipelines which have different procedures

for Shipper nominations which Transporter may be required to follow in

order to receive or deliver transportation gas to such interconnects.

This may require Shippers on Transporter's system to nominate in

accordance with such interconecting pipeline procedures in liieu of

the procedures outlined in Section 14.1 above. Transporter will notify

each affected Shipper when such action is necessary.

14.3 Nomination Changes After the Start of the Gas Day. Transporter

will accept nomination changes after the start of the Gas Day subject

to available pipeline capacity, supply availability and

upstream/downstream pipeline confirmation and providing that confirmed

commitments for delivery of gas to other Shippers will not be

adversely affected. Such nominations shall be made by 11 a.m.

Mountain Time to be effective no less than four hours after receipt of

the nomination, to allow sufficient processing time and confirmation

of upstream and downstream receipt and delivery availability.

Nomination changes will also be accepted during the gas day to

allow for a change in receipt or delivery point to or from either the

Jackson Prairie or Plymouth storage facility to manage daily

imbalances to the extent existing transportation and storage

obligations are not compromised.

14.4 Confirmation and Scheduling of Gas Receipts and Deliveries. All

nominations are considered scheduled and confirmed for receipt and/or

delivery when confirmations are made available to Nominating Party

and/or Shipper and/or Receiving Party on Transporter's Northwest

Passage PC Nomination System or via telecopy. Daily confirmations

will be made by Transporter no later than 4 p.m. Mountain Time on the

day prior to commencement of the gas day, subject to the timely

receipt of upstream/downstream pipeline information.

14.5 Limitation Upon Transporter's Daily Transportation Obligation.

Transporter shall not be obligated to deliver to Receiving Party or an

interconnecting pipeline on any day a greater quantity of gas than it

has received and scheduled for delivery. Transporter is not obligated

to manipulate its pipeline operation in order for the Receiving Party

to avoid unauthorized overruns as provided in Section 15 of the

General Terms and Conditions, or the Receiving Party to avoid

operating expenses of compression or other related facilities on its

system.