 The NHS commissions most emergency medical services through the 14 NHS organisations with ambulance responsibility across the UK (11 in England, 1 each in the other three countries).As with other emergency services, the public normally access emergency medical services through one of the valid emergency telephone numbers (either 999 or 112).In addition to ambulance services provided by NHS organisations, there are also some private and volunteer emergency medical services arrangements in place in the UK, the use of private or volunteer ambulances at public events or large private sites, and as part of community provision of services such as community first responders.