Northwest Pipeline Corporation

First Revised Volume No. 1-A

Effective Date: 11/25/1990, Docket: GT91- 5-001, Status: Effective

Original Sheet No. 311 Original Sheet No. 311 : Effective

RATE SCHEDULE TF-1

Firm Transportation

1. AVAILABILITY

This transportation rate schedule is available on a first-come,

first-served basis as provided herein to any party (hereinafter called

"Shipper") for the transportation of natural gas by Northwest Pipeline

Corporation (hereinafter called "Transporter") through Transporter's

mainline transmission system under the following conditions:

(a) Shipper desires firm service and Transporter has available

capacity to render such firm service for Shipper. If at the

time service is requested under this rate schedule Transporter

does not have capacity to receive firm transportation gas at

the receipt point(s) requested for redelivery at the delivery

point(s) requested, Transporter shall offer to receive firm

transportation gas at other receipt point(s) where capacity

may be available to enable redelivery at the delivery point(s)

requested.

(b) Transporter can commence the service contemplated without need

for construction of any additional pipeline facilities, other

than any such new taps, valves, measurement equipment, or

other facilities required at the Receipt or Delivery Point(s)

to effect delivery and measurement of the gas; and

Agreement for service under this Rate Schedule.

Conversion of firm sales contract demand to firm transportation

pursuant to Transporter's sales rate schedules shall have priority over

other new firm transportation requests on Transporter's system with

regard to access to service and shall not be subject to the first-come,

first-served queue. However, all firm transportation that has been

provided access shall be curtailed in accordance with Section 12 of the

General Transportation Terms and Conditions.

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 This Rate Schedule shall apply to gas transported by Transporter

for Shipper pursuant to the executed Transportation Agreement for

service under this Rate Schedule. Service under this rate schedule

may be either independent of or in conjunction with service under

any of Seller's sales rate schedules. Such service would be: