The concept of the “paramedic” in a non-military, civilian environment, was introduced on a limited basis in several American cities in the late 1960’s, mainly to improve life-saving care to cardiac patients. In 1972, the NBC-TV series Emergency! provided the American public with a weekly glimpse into the world of Los Angeles County Fire Department paramedics, helping to spread the idea across the nation. What was unique about the Los Angeles County Fire Department’s paramedic program was that firefighters were cross-trained as paramedics. 

In the Chicago area, fire departments with a tradition of providing ambulance service were the first to train paramedics and place Advanced Life Support (ALS) Mobile Intensive Care Unit (MICU) ambulances into service. The Niles Fire Department – which had provided ambulance service to its residents since 1946 – established a paramedic-program in 1973. The Skokie Fire Department placed two MICU ambulances staffed with paramedic firefighters into service in 1975, replacing its two 1969 Cadillac Basic Life Support (BLS) ambulances.

The Chicago Fire Department, which had provided ambulance service since 1928 and had 33 Cadillac and Pontiac BLS ambulances in service in 1974, placed their first two paramedic-staffed MICU ambulances into service in July 1974, with Ambulance 41 replacing Ambulance 1 at E1/T1 and Ambulance 42 replacing Ambulance 21 at E13. Five additional CFD MICU ambulances were in service by the end of 1974, with Ambulance 43 replacing Ambulance 11 at E22, Ambulance 44 replacing Ambulance 24 at E57, Ambulance 45 replacing Ambulance 2 at E103, Ambulance 47 replacing Ambulance 7 at E108/T23, and Ambulance 16 at O’Hare Field.

The City of Evanston borrowed an MICU “demonstrator” – minus the drugs and the specialized ALS gear only paramedics would be certified to use – from the State of Illinois Department of Public Health in June 1974, and it was tested over a 60-day period by the EFD. It was a modular ambulance, meaning it was a cab & chassis with a “box” mounted on top of the chassis. Personnel from Squad 21 were assigned to the unit (known as Ambulance 1) and responded to inhalator calls and ambulances runs city-wide throughout the summer. An engine company was dispatched as a “first responder” for inhalator calls outside Station # 1’s first-due area.