The senior ensign of Port Security Unit 309 transfers the title of Bull Ensign to the senior ensign of PSU 311 during the Transfer of Authority ceremony held July 24, 2018.
PSUs serve as anti-terrorism force protection expeditionary units with boat crews and shore-side security teams capable of supporting port and waterway security anywhere the military operates. U.S. Coast Guard photo by Petty Officer 1st Class Emaia Rise