 In some areas, private companies may provide only the patient transport elements of ambulance care (i.e.non-urgent), but in some places, they are contracted to provide emergency care, or to form a 'second tier' response, where they only respond to emergencies when all of the full-time emergency ambulance crews are busy.This may mean that a government or other service provide the 'emergency' cover, whilst a private firm may be charged with 'minor injuries' such as cuts, bruises or even helping the mobility-impaired if they have for example fallen and simply need help to get up again, but do not need treatment.