Coast Guard anchors

Marine Safety Office Puget Sound

1519 Alaskan Way S, Seattle, WA 98134

13th Coast Guard District

Marine Safety Office Puget Sound is located in the headquarters of Coast Guard Sector Puget Sound, as well as Coast Guard Base Seattle, in Seattle, Washington.  Their area of responsibility includes the waters of Puget Sound, the Strait of Juan de Fuca, and the Washington coast north of the Queets River. Marine Safety Office Puget Sound is divided into seven departments: prevention, operations, investigations, and support and training. The Puget Sound Vessel Traffic Service is under the operational control of MSO Puget Sound. Together with Sector Puget Sound, VTS and MSO Puget Sound ensure the safety of Puget Sound waterways and protect the vital interest represented by the commercial transportation industry.


Every year, the MSO conducts roughly 2,500 commercial vessel and equipment inspections, responds to 650 pollution incidents and 2,000 marine incidents, issues licenses to 10,000 mariners, and investigates 200 marine casualties.  The MSO is part of the Coast Guard’s 13th District.

Arriving at Marine Safety Office Puget Sound
The closest airport is the Seattle-Tacoma International Airport located 13.8 miles from Headquarters.

Base Population
There are approximately 170 active duty, reservists, and civilian personnel assigned to Marine Safety Office Puget Sound.