500 feet
All emergency vehicles in my area are labelled "Stay 500 feet behind"
15 feet
Stay 500 feet behind it if it's lights are flashing (in the U.S.)
Motorists should maintain a distance of at least 500 feet behind a signaling emergency vehicle. This distance helps ensure the safety of emergency responders and allows for adequate space to maneuver in case of sudden stops or changes in direction. Always follow local laws and regulations regarding this requirement, as they may vary by state or area.
300 feet !
500 feet.
300 feet
I'm quite sure there is no emergency vehicle anywhere within which you can travel 300 feet.
The distance one must maintain behind an emergency vehicle actively engaged in a response, or a pursuit, will vary by state regulations, and even sometimes by local jurisdiction. Fire apparatus customarily has this distance stenciled on the back of the equipment. If it is a law enforcement or emergency medical vehicle you must be aware of your own jurisdictions regulations.Note: Unless you are also operating an emergency vehicle, you may NOT follow one engaged as above. It is against the law to do so in every jurisdiction I am aware of.
500 feet
the answer is approx, 300 feet.