Skip to main content
A Mass-Casualty Incident, or MCI, is a scene with multiple patients and not enough resources or personnel to provide one-on-one patient care. An MCI will be declared by the first arriving unit at the scene of the incident after they conduct a basic survey of the scene. The Scene commander will announce an all-call for a mass casualty incident. This information will then be relayed to all other department officials. Once additional units arrive on scene, they will conduct a further sweep and examine patient injuries. In an MCI, a “box” ambulance must be present for the casualties. 2 EMTs may double up in this unit, a driver and a passenger to treat the wounded. When patient injuries are determined, the patients will then be given a color code (Reference the Color Code System below)
  • GREEN
    • Minimal- Patients who can ambulate out of the incident area to a treatment area.
  • YELLOW
    • Delayed- Patients who have non-life-threatening injuries, but are unable to walk or exhibit an altered mental status.
  • RED
    • Immediate- Patients who have major life-threatening injuries, but are salvageable given the resources available.
  • GREY
    • Expectant- Patients whose injuries make survival unlikely with resources available.
  • BLACK
    • Deceased- Patients who show no signs of life.

[5.4.1] - Code Determination

Once codes are determined, this will be relayed to the Incident Commander who will then arrange appropriate transportation and will remain in communication with Command.