What does a Code 3 response indicate?

• A. Urgent response without lights and sirens; non-emergency but time-critical.
• B. Emergency response with lights and sirens; highest priority for arrival.
• C. Incident canceled or no incident; units return to service.
• D. Routine response without any special privileges.

Answer: (B)

Code 3 means an emergency response with lights and sirens, the highest priority for arrival. This is used when time is critical and there may be a threat to life or serious damage if the response is delayed, so responders move with the intent to reach the scene as quickly as possible and clear paths for safety and rapid access. While this requires urgent action, crews still follow safety policies and traffic rules as much as possible to minimize risk, using lights and sirens to gain right of way and coordinating with dispatch. The other descriptions describe non-emergency or routine responses, or a cancellation, which do not fit when the urgency demands lights and sirens.