The Coast Guard is inviting the public to comment on the Draft Programmatic Environmental Impact Statement (PEIS) for the Coast Guard’s proposed expansion and modernization of Base Seattle. In accordance with the National Environmental Policy Act of 1969, the PEIS analyzes the potential environmental impacts of the proposed action alternatives.

The purpose of the expansion is to provide adequate facilities and infrastructure at Base Seattle to support current and future execution of the Coast Guard’s statutory missions. Base Seattle is the largest Coast Guard facility in the Pacific Northwest and is an essential facility to support Coast Guard missions in both the local area as well as the Polar Regions now and for the foreseeable future.

The draft PEIS can be read in its entirety at the following online location:

With the publication today of the Coast Guard’s Notice of Availability, the public may provide comments through December 2, 2022. Comments may be submitted online at with docket number USCG-2021-0183 or via U.S. Mail addressed to: U.S. Coast Guard, Shore Infrastructure Logistics Center, Environmental Management Division, ATTN: Mr. Dean Amundson, 1301 Clay Street, Suite 700N, Oakland, CA 94612-5203. Comments must be received or postmarked no later than December 2, 2022.

A public meeting is scheduled to be held in mid-November in Seattle to provide an additional opportunity for public commentary. Additional details will be released at a later date.