Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

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Effective Date: 12/01/2009, Docket: RP10-85-000, Status: Effective

First Revised Sheet No. 218A First Revised Sheet No. 218A

Superseding: Original Sheet No. 218A

GENERAL TERMS AND CONDITIONS

(Continued)

11. SERVICE AGREEMENT AND SERVICE CONDITIONS (Continued)

If Transporter and Shipper desire to modify an existing Service

Agreement, the following provisions will apply:

a) For modifications that are to become effective immediately, the

Shipper must electronically submit a request in Northwest Passage to

restate its existing Service Agreement in the format of the Form of

Service Agreement in the Tariff. Such request must incorporate any

effective Addendum to Service Agreement and any effective Amendment(s)

made pursuant to Sections 11.5 or 22.12 of the General Terms and

Conditions of this Tariff. However, any Addendum to Service Agreement

and/or Amendment(s) that were executed before such restatement request

which are not yet effective will continue.

b) For modifications that are to become effective at a future

date, Shipper must: i) electronically submit a request in Northwest

Passage to amend its existing Service Agreement using the Form of

Service Agreement Amendment in the Tariff; and ii) have an existing

Service Agreement in the format of the Form of Service Agreement in the

Tariff. Such request must incorporate of any effective Addendum to

Service Agreement and any effective Amendment(s) made pursuant to

Sections 11.5 or 22.12 of the General Terms and Conditions of this

Tariff. However, any Addendum to Service Agreement and/or Amendment(s)

that were executed before such amendment request which are not yet

effective will continue.