An order from the ISO to immediately evacuate a building or area should be prefaced by?

A directive from the Incident Safety Officer (ISO) to evacuate a building or area must be prefaced by emergency traffic. This term refers to prioritized communication specifically related to urgent situations where immediate action is required. By declaring emergency traffic, the ISO ensures that all personnel are aware of the gravity of the situation and focuses their attention on the evacuation command while minimizing distractions and facilitating clear communication.

This immediate alert not only prepares response teams to act effectively but also establishes a sense of urgency among all individuals present. It delineates the evacuation as a critical directive that must be adhered to promptly, ensuring everyone's safety during hazardous conditions. This systematic approach helps streamline the evacuation process, reduces confusion, and maximizes the protection of all individuals involved.