The Elwha is usually working the Anacortes-San Juan Islands route, and is one of only two ferries in the system certified for international sailings because she meets certain Safety Of Life At Sea (or, SOLAS) standards. This allows the Elwha to make the crossing between the United States and British Columbia. The only other vessel in the system with this certification is the Chelan. From 2006, the Elwha remained on hiatus from its regular operations on the Sidney route while the Chelan replaced it. In fall 2010, the Elwha returned to regular operations on this route and continued for the first few days of the Spring 2011 service, before the Chelan resumed regular operations on the route. The Elwha appeared on the route again for fall 2011.