Happy National Emergency Medical Services Week! Before we delve into the reasoning behind this national celebration, we’ll explore what Emergency Medical Services are. So, what is an Emergency Medical Service? Emergency Medical Services, more commonly known as EMS, is a system that provides emergency medical care. Once it is activated by an incident that causes serious illness or injury, the focus of EMS is emergency medical care of the patient(s). (source) President Gerald Ford authorized national EMS week in 1974, intending to honor EMS practitioners and the services they provide to the American people.