Final answer:
The required distance to maintain from an emergency vehicle responding to a call varies, but often a minimum of 500 feet is needed. Exact distances can be found in local traffic laws, which aim to protect the safety of emergency personnel.
Step-by-step explanation:
The legal distance required when driving near an emergency vehicle that is responding to an emergency call can vary by jurisdiction.
Typically, a driver must maintain a safe distance from the emergency vehicle to avoid obstructing its path or hindering its progress. In general, many regions require drivers to stay at least 500 feet away from an emergency vehicle that has its siren and lights activated.
Some areas may have specific 'move over' laws that require changing lanes or slowing down when approaching stopped emergency vehicles. The exact distance can be found in the local traffic laws and it's important to be familiar with these laws to ensure the safety of emergency personnel.