. "ATS" . . . . . . . . . . . . . . . . . "1962-10-19" . "Association of Trust Schools" . . . . . . "ATS" . . . . . . . . . . . "Association of Governing Bodies of Independent Schools in Rhodesia and Nyasaland" . . "Association of Trust Schools" . . . . . . . . . . "Educational accreditation" . . . . "Promoting Educational Excellence in Independent Schools" . . . . . . . . . . . . . "66 schools" .