Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

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

First Revised Sheet No. 17 First Revised Sheet No. 17

Superseding: Original Sheet No. 17

RATE SCHEDULE TF-1

Firm Transportation

(Continued)

2. APPLICABILITY AND CHARACTER OF SERVICE (Continued)

(a) TF-1 (Large Customer): All rate provisions contained in this

Rate Schedule apply to TF-1 (Large Customers).

(b) TF-1 (Small Customer): A TF-1 (Small Customer) is any

pipeline or distribution company which elects Rate Schedule TF-1

(Small Customer) service and whose aggregate Contract Demand, as

specified in its Service Agreement(s) hereunder, is for 10,000 Dth

per day or less. (A Shipper qualified to elect either the TF-1

(Small Customer) or TF-1 (Large Customer) service hereunder may

change its election permanently only in connection with the filing

of a general Section 4 rate case by Transporter. Transporter

shall provide such Shippers with an opportunity to make such an

election prior to filing such rate applications.)

Section 22 of the General Terms and Conditions and an executed

Service Agreement for Rate Schedule TF-1 (Large Customer) service.

(d) Any Rate Schedule TF-1 (Small Customer) Shipper may convert

all of its service temporarily to TF-1 (Large Customer) service to

participate in Transporter's Capacity Release Program without

amending its service agreement, provided that such temporary

conversion shall be for a minimum term of twelve calendar months.

Notice of the intent to so convert temporarily to TF-1 (Large

Customer) service must be given to Transporter electronically

using the TF-1 (Small Customer) temporary conversion election

screen available in Northwest Passage on Transporter's Designated

Site at least one (1) week prior to the beginning month for which

such conversion is to become effective. Shipper's temporary

conversion election constitutes agreement to the temporary

conversion. Any TF-1 (Small Customer) Shipper participating in a

temporary conversion to TF-1 (Large Customer) service shall pay

all rates and charges applicable to TF-1 (Large Customer) service