What indicates that you must pull over for an emergency vehicle?

Flashing lights and/or sirens are clear indicators that you must pull over for an emergency vehicle. These signals alert road users to the presence of vehicles that may be responding to an emergency situation. When you see flashing lights or hear sirens, it is crucial to allow the emergency vehicle to pass safely and quickly. This is not only a legal requirement but also a responsibility to ensure the safety of everyone on the road, including the personnel responding to the emergency.

The other options do not specifically indicate the need to pull over. Speeding vehicles nearby may suggest hazardous conditions, but they do not provide clear instructions about yielding to an emergency vehicle. The presence of a police officer may imply a need to stop, but not necessarily for an emergency response scenario. Similarly, roadblocks can indicate a need to stop or slow down, but they do not specifically relate to the procedure of yielding to emergency vehicles.