Initial Notification begins when the Incident Commander determines there is a need for BE at the scene. Which option best reflects this trigger?

• A. When the Incident Commander determines that there is a need for BE at the scene.
• B. Upon receipt of a formal request from command.
• C. After the scene is secured.
• D. At the start of the incident and before BE resources are dispatched.

Answer: (A)

The moment BE support is needed is determined by the Incident Commander’s on-scene assessment. When the IC decides that BE expertise is required to manage environmental health hazards, safety risks, or contaminant concerns, that triggers the initial notification so BE can plan and respond. This keeps BE mobilization tied to the actual on-scene need rather than waiting for a formal request or anticipating needs before any assessment. The other options either rely on a formal request, occur only after securing the scene, or assume BE is needed from the very start, which doesn’t align with the IC’s decision-making process on arrival and evaluation.