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In page Paramedic:

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In the United Kingdom, ambulances were originally municipal services after the end of World War II. Training was frequently conducted internally, although national levels of coordination led to more standardization of staff training. Ambulance services were merged into county-level agencies in 1974, and then into regional agencies in 2006. The regional ambulance services, most often trusts, are under the authority of the National Health Service and there is now a significant standardization of training and skills. The UK model has three levels of ambulance staff. In increasing order of clinical skill these are: emergency care assistants, emergency medical technicians, and paramedics.[citation needed]