The U.S. Pacific Command is holding a ceremony 9 a.m. May 30 at Joint Base Pearl Harbor-Hickam as Adm. Phil Davidson relieves Adm. Harry Harris as Commander.

Gen. Joseph Dunford, Chairman of the Joint Chiefs of Staff and Adm. John Richardson, Chief of Naval Operations, as well as numerous U.S. flag and general officers, ambassadors and dignitaries representing U.S. allies and partners in the region will attend the ceremony.

The public is advised to avoid the section of Kamehameha Highway bordering Joint Base Pearl Harbor Hickam between 7 and 11 a.m. May 30 due to increased traffic volume. In addition, the bases’s Halawa Gate is scheduled for closure to commercial vehicles on Wednesday.

Davidson, a native of St. Louis, Missouri, will be the 25th Commander of USPACOM. He is a surface warfare officer and a 1982 graduate of the U.S. Naval Academy. His most recent assignment was Commander, U.S. Fleet Forces in Norfolk, Va.

Harris, born in Japan and reared in Tennessee and Florida, is a 1978 graduate of the U.S. Naval Academy and had served as the USPACOM commander since 2015. Harris is retiring after 40 years of Naval service.

The change of command ceremony will be livestreamed on the U.S. Pacific Command’s Facebook for those unable to attend.