U.S. Coast Guard has administrative buildings and barracks at the base of a concrete pier on the harbor. The current station opened in 1979 and is responsible for safety and law enforcement in over of Cape Cod Bay and the Atlantic Ocean. Noteworthy past disasters within this station's area include the wreck of the submarine S-4 in 1927. This station includes the first federal building to receive solar power. A frequent sight in the harbor is the station's 47-foot Motor Lifeboat.