From the Document: "Portable ambulance decontamination systems are used by emergency medical services (EMS), fire departments, and private ambulance providers to disinfect ambulance cabins. To provide emergency responders with information on portable ambulance decontamination systems, the System Assessment and Validation for Emergency Responders (SAVER) Program conducted a market survey. [...] The use of portable ambulance decontamination systems may be most helpful following the transport of a patient with a virus or bacteria that is highly contagious and/or life threatening, as well as resistant to antimicrobial products. Common microorganisms of concern include Clostridium difficile bacteria, methicillin-resistant Staphylococcus aureus (MRSA), Human Immunodeficiency Virus (HIV), tuberculosis (TB), and Hepatitis B and C, among others."
Department of Homeland Security: https://www.dhs.gov/