Northwest Pipeline Corporation

First Revised Volume No. 1-A

Effective Date: 04/01/1993, Docket: RP93- 95-000, Status: Effective

Sub Second Revised Sheet No. 314 Sub Second Revised Sheet No. 314 : Effective

Superseding: First Revised Sheet No. 314

RATE SCHEDULE TF-1

Firm Transportation

(Continued)

3. MONTHLY RATE(S) (Continued)

3.6 Adjustment of Rates: Transporter reserves the right to provide

by contract with Shipper to adjust at any time the rates

specified in this Section 3 applicable to any individual

transportation for Shipper without adjusting any other rates for

any other transportation for that or another Shipper; provided,

however, that such adjusted rate(s) shall not exceed the

applicable Maximum Rate(s) nor shall they be less than the

Minimum Rate(s) per MMBtu set forth on Sheet No. 201 of this

First Revised Volume No. 1-A, or any superseding tariff. If

Transporter so adjusts any rates to any Shipper, Transporter

shall file with the Federal Energy Regulatory Commission any

required reports reflecting such adjusted rates.

4. MINIMUM MONTHLY BILL

For Rate Schedule TF-1 Large Customers the minimum monthly bill

is the Reservation Charge for the month. There is no minimum monthly

bill for the Rate Schedule TF-1 Small Customers.

5. TRANSPORTATION CONTRACT DEMAND

The Transportation Contract Demand shall be the largest number

of MMBtu Transporter is obligated to transport for Shipper under this

Rate Schedule on any one day, and shall be specified in the executed

Transportation Agreement for service under this Rate Schedule.

The Transportation Contract Demand refers to the quantity of gas

to be delivered by Transporter to Shipper after transportation, at the

Delivery Point(s), (after fuel reimbursement furnished in-kind, if the

executed Transportation Agreement so provides).