The New Central Bank Act states that the appointment of BSP governor, as head of a department, requires CA confirmation. But the Palace cites a Supreme Court ruling that states no law can add to the types of government officials needing CA approval.
Story: https://www.rappler.com/nation/225032-malacanang-says-commission-appointments-nod-not-needed-diokno-appointment-bangko-sentral-governor
