Chief Executive Officer | chief executive officer | Chief executive officer | General officer | All-Ireland Senior Hurling Championship | All-Ireland Senior Football Championship | High School Musical 3: Senior Year | Commanding Officer | police officer | All-Ireland Senior Camogie Championship | non-commissioned officer | Ulster Senior League | Chief Operating Officer | Chief operating officer | general officer | Chief Financial Officer | All-Ireland Senior Club Hurling Championship | Officer Candidate School | Munster Senior Hurling Championship | Foreign Service Officer | 2012 All-Ireland Senior Football Championship Final | 1993 All-Ireland Senior Football Championship | Senior Member | Senior Counsel | Senior Advocate of Nigeria | senior | Non-commissioned officer | Master Chief Petty Officer of the Navy | commissioned officer | commanding officer |
Senior Officers (Lieutenant & Above) and Junior Officers (Senior Warrant Officer & Below) serve at least 24 and 16 hours respectively per month.