What does a blue emergency vehicle color or emblem indicate?

• A. An emergency service vehicle
• B. A construction vehicle
• C. A private security vehicle
• D. A tow truck

Answer: (A)

Blue indicates an emergency service vehicle, such as police. This color signals that the vehicle has the right of way, so you should slow down and pull over to the right edge of the road or to a safe place and stop, if safe to do so, until the emergency responders have passed. Do not block intersections or try to follow closely behind. Once the vehicle has passed, proceed with caution.

Construction or maintenance vehicles use amber/orange lights, not blue. Tow trucks typically use amber lights. Private security vehicles aren’t standardized, but blue is generally associated with official emergency services.