In what context would decontamination be necessary during HazMat operations?

Decontamination is necessary during HazMat operations specifically when hazardous materials make contact with personnel or equipment. This step is crucial to minimize the risk of contamination spreading beyond the incident site and to protect the health and safety of responders and the public. Hazardous substances can pose serious health risks, and any exposure—even indirectly—can result in severe consequences. Therefore, implementing decontamination procedures helps ensure that any potentially harmful materials are removed from personnel and equipment before they leave the operational area.

This response highlights the primary concern during HazMat operations: preventing the spread of hazardous materials and ensuring physical safety. Other scenarios, such as when team members are tired, after resolving an incident, or during transport of equipment, do not directly trigger the need for decontamination in the same urgent manner as exposure to hazardous materials does.