As a note, the official phrasing for the Petty Officer and Chief Petty Officer ranks is "Petty Officer Cadet First (or Second) Class," and "Chief Petty Officer Cadet First (or Second) Class." However, outside of Cadet Administrative and Training Orders (CATO), and Queen's Regulations and Orders (Cadets) (QR&O(Cdt)), custom omits "Cadet" in casual reference. Thus, Petty Officer First Class is the customary rendering. Generally, where there is a need to distinguish between cadets and Canadian Forces members, the NCO ranks will be written or spoken as Cadet Petty Officer First Class, abbreviated as C/PO1.