E7-7571. Northwest Pipeline Corporation; Notice of Compliance Filing

April 13, 2007.

Take notice that on April 10, 2007, Northwest Pipeline Corporation (Northwest) tendered for filing as part of its FERC Gas Tariff, Third Revised Volume No. 1, the following tariff sheets, to be effective January 1, 2007.

2nd Substitute Thirty-First Revised Sheet No. 5

Substitute Third Revised Sheet No. 5-B

2nd Substitute Sixth Revised Sheet No. 5-C

2nd Substitute First Revised Sheet No. 5-D

2nd Substitute Fourteenth Revised Sheet No. 6

Substitute Fifteenth Revised Sheet No. 7

Substitute Seventeenth Revised Sheet No. 8

Substitute Fifteenth Revised Sheet No. 8.1

Northwest states that copies of the filing were served on parties on the official service list in the above-captioned proceeding.

Any person desiring to protest this filing must file in accordance with Rule 211 of the Commission's Rules of Practice and Procedure (18 CFR 385.211). Protests to this filing will be considered by the Commission in determining the appropriate action to be taken, but will not serve to make protestants parties to the proceeding. Such protests must be filed in accordance with the provisions of Section 154.210 of the Commission's regulations (18 CFR 154.210). Anyone filing a protest must serve a copy of that document on all the parties to the proceeding.

The Commission encourages electronic submission of protests in lieu of paper using the “eFiling” link at http://www.ferc.gov. Persons unable to file electronically should submit an original and 14 copies of the protest to the Federal Energy Regulatory Commission, 888 First Street, NE., Washington, DC 20426.

This filing is accessible on-line at http://www.ferc.gov,, using the “eLibrary” link and is available for review in the Commission's Public Reference Room in Washington, DC. There is an “eSubscription” link on the Web site that enables subscribers to receive e-mail notification when a document is added to a subscribed docket(s). For assistance with any FERC Online service, please e-mail [e-mail], or call [phone] (toll free). For TTY, call [phone].

Kimberly D. Bosem,

Secretary.