Kwa-di Tabil-class ferries, were built for Washington State Ferries to replace the retired Steel Electric-class ferries. The vessels serve lower traffic routes and carry up to 64 vehicles. The State of Washington spent approximately $213 million to construct the three ferries in this class.

Washington State Ferries (WSF) is a government agency that operates automobile and passenger ferry service in the U.S. state of Washington as part of the Washington State Department of Transportation. It runs ten routes serving 20 terminals located around Puget Sound and in the San Juan Islands, designated as part of the state highway system. The agency maintains a fleet of 21 vessels that are able to carry passengers and vehicles.