Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

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

First Revised Sheet No. 16 First Revised Sheet No. 16

Superseding: Original Sheet No. 16

RATE SCHEDULE TF-1

Firm Transportation

1. AVAILABILITY

This Rate Schedule is available as provided herein and

incorporates the General Terms and Conditions to any party (hereinafter

called "Shipper") for the transportation of natural gas by 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, such as laterals, required at the Receipt or Delivery

Point(s) to effect delivery and measurement of the gas; and

(c) Shipper and Transporter have executed a Service Agreement

for service under this Rate Schedule.

As used in this Rate Schedule, Transporter's mainline transmission

system does not include Designated Laterals.

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 Applicability. This Rate Schedule shall apply to gas transported

by Transporter for Shipper pursuant to the executed Service Agreement

for service under this Rate Schedule for TF-1 (Large Customer) and TF-1

(Small Customer) service. The Service Agreement will specify the

customer category, i.e., whether the Shipper is a Large Customer or

Small Customer and, if the Shipper is an incremental expansion customer,

whether the Shipper is a Columbia Gorge Expansion customer, a 15-Year

Evergreen Expansion customer or a 25-Year Evergreen Expansion customer.