The former Secretary to the Government of the Federation, Boss Mustapha, on Wednesday, handed over documents of office to his successor, George Akume.
The handover took place at the SGF office located at the Three Arms Zone in Abuja, shortly after Akumeās arrival.
President Bola Tinubu had earlier administered the oath of office to the former Governor of Benue State, Akume.
Tinubu made the appointment four days after he assumed power.
The President also appointed Speaker of the House of Representatives, Mr. Femi Gbajabiamila, as the Chief of Staff; and Senator Ibrahim Hadejia, a former deputy governor of Jigawa State, as the Deputy Chief of Staff.