The ultimate authority for the conduct of MacKillop Catholic College rests with the Roman Catholic Church Trust Corporation of the Archdiocese of Hobart (Church Trust Corporation) who delegates governance authority for MacKillop Catholic College to the Catholic Education Commission Tasmania (CECT) and its operational arm, the Tasmanian Catholic Education Office. Information on the Catholic Education Commission Tasmania can be found at https://catholic.tas.edu.au/catholic-education-commission-tasmania
