Cmdr. Paul Mangini informs Capt. Michael Zamperini that he has relieved Cmdr. Tanya Giles as commanding officer of Coast Guard Marine Safety Unit Huntington in Barboursville, West Virginia, June 20, 2018. MSU Huntington's area of responsibility spans 857 miles of navigable waterways throughout West Virginia, Ohio, and Kentucky including the Port of Huntington/Tri-State, which is the nation’s largest inland port per tonnage. U.S. Coast Guard photo