Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

Effective Date: 11/01/2009, Docket: RP09-1056-000, Status: Effective

Original Sheet No. 222A Original Sheet No. 222A

GENERAL TERMS AND CONDITIONS

(Continued)

12. SCHEDULING PRIORITIES AND CURTAILMENT POLICY (Continued)

capacity Nominations cannot be accommodated, available capacity

will be allocated based on rate, highest to lowest. For services

at the same rates, any necessary allocations of available capacity

will be pro rata based on otherwise acceptable and confirmable

Nominations. To the extent there is more storage capacity than

there is injection and/or withdrawal capacity, Transporter will

separately and subsequently allocate capacity for in-ground

transfer requests using the methodologies herein.

After scheduling interruptible storage capacity, Nominations for

injections/withdrawals for interruptible service under Rate

Schedules DEX-1 (Deferred Exchange Quantities that exceed the

Daily Delivery Quantity) and PAL will be scheduled. If all such

injection and/or withdrawal Nominations cannot be accommodated,

available capacity will be allocated pro rata based on otherwise

acceptable and confirmable Nominations.

For services with Negotiated Rates, the rates used for scheduling

priorities are delineated in Section 12.5.

12.4 Scheduling Priorities for Plymouth LNG Facilities

If Transporter determines that its operationally available liquefaction

and/or vaporization capacities at the Plymouth LNG storage facility are

insufficient to accommodate all otherwise acceptable new Nominations for

services under Rate Schedules LS-1, LS-2F and LS-2I in any Nomination

cycle, Transporter will schedule its operationally available capacity

for Nominations that have not already been scheduled for a given Gas Day

in accordance with the following priorities of service:

(a) First, Nominations for firm service under Rate Schedules LS-

1 and LS-2F will be scheduled. If all such Nominations cannot be

accommodated, available liquefaction capacity will be allocated

pro rata based on Shipper's Storage Capacities and available

vaporization capacity will be allocated based on Shipper's

Contract Demand.