<unk>  (CAO) is a senior manager in some<unk>  services. In the United Kingdom, it is the traditional title held by the<unk>  of an NHS<unk>  service or a private<unk>  service. In Ireland's HSE National<unk>  Service, it refers to one of several senior management roles. In the UK, the role is comparable to that of a<unk>  Constable within police forces or<unk>  Fire Officer within fire services. CAOs are the operational and administrative heads of the<unk>  service and take command of all<unk>  personnel at large operational incidents. They also set policy and targets (along with a board of directors) and are responsible for the day-to-day running of the service. The title of CAO is normally only used by medically qualified paramedics who have previously served on the frontline and have risen through the ranks. In recent times, several<unk>  services have employed non-medically qualified managers in their most senior role. They hold the title of<unk>  Executive, rather than<unk> . Some<unk>  services now only use the title of<unk>  Executive for their<unk> , regardless as to whether they have a frontline background. In this case, CEs with a medical background will still wear a uniform, whereas non-medical CEs do not. NOTE: In the NHS<unk>  Service,<unk>  is a redundant title, replaced, with the advent of NHS trusts, by<unk>  Executive, regardless of whether the holder has a professional<unk>  background or not.
Chief ambulance officer
Flight paramedic
Aviation medical examiner
Emergency medical dispatcher
Emergency medical technician
Independent safety officer
Emergency care assistant
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