Rear Adm. David Throop, commander, Coast Guard 13th District, presides over the Marine Safety Unit Portland change of command where Capt. Alan Moore (center) relieved Capt. Thomas Griffitts ( left) of command during the ceremony held at the unit's base in Portland, Ore., June 7, 2019
The change of command ceremony is a military tradition that represents a formal transfer of authority and responsibility for a unit from one commanding officer to another.
U.S. Coast Guard photo by Petty Officer 2nd Class Valerie Higdon.