What are the two types of local alert during a biological or chemical attack?

In the context of responding to a biological or chemical attack, the two types of local alert methods typically utilized are visual and auditory signals. Visual alerts can include things like colored flags or symbols that indicate the presence of danger, allowing personnel to quickly understand the situation at a glance. Auditory alerts, on the other hand, might involve alarms, sirens, or recorded announcements to convey the necessity for immediate action or caution.

These alert systems are vital in ensuring that all individuals are promptly informed about the potential threats, allowing them to react appropriately for their safety and readiness in a crisis. Understanding these alert mechanisms is essential for effective communication during emergencies, aiding in swift decision-making and response among Marines and other personnel.