This is a list of Emergency Medical Services providers in the Canadian province of Ontario. In 1999 The Government of Ontario downloaded responsibility for the provision of Land Ambulance Services. In the southern half of the province, the responsibility fell onto Upper Tier Municipalities, such as county or regional governments as well as some larger cities and townships. In the north, it became the responsibility (for the most part) of District Social Service Boards. In both cases, UTMs/DSSBs may choose to operate the service directly, or, contract provision of service out to a third party provider, be it neighbouring service or private operator.