Rear Adm. David Throop, commander Coast Guard 13th District and Capt. Brendan McPherson, chief of staff Coast Guard 13th District, presents a Master Cutterman certificate to Chief Warrant Officer Christopher Boss during a ceremony held at Marine Safety Unit Portland, Ore., July 12, 2018.
The Master Cutterman certificate is earned by serving an accumulative of 20 years at sea serving aboard Coast Guard cutters.
U.S. Coast Guard photo by Petty Officer 1st Class Levi Read.