The Patient Staging Area (PSA) is located in the Cold Zone and is the transfer point for victims that have been stabilized for transport to higher care medical facilities or for fatalities to be transported to morgue facilities. The PSA area must be large enough to accommodate helicopter operations and a large number of ambulances.

The Casualty Collection Point is located in the Warm Zone and will typically have three processing stations:

• Station 1 - Litter decontamination and non-ambulatory delayed treatment patients
• Station 2 - Litter decontamination and immediate treatment patients
• Station 3 - Ambulatory decontamination, minimal treatment patients, and ambulatory delayed treatment patients

Mass casualty decontamination occurs in the Warm Zone. The Safe Refuge Area is located in the Warm Zone and is used to assemble individuals who were witnesses to the incident and to separate contaminated from non-contaminated persons.

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