Under what circumstances is overtaking not allowed when driving a motor vehicle?

[DelBrooklyn]

Overtaking is not allowed under the following circumstances: 1. When there is a police car, fire truck, ambulance, or engineering rescue vehicle performing emergency tasks ahead. 2. When the vehicle ahead is making a left turn, turning around, or overtaking, overtaking is not permitted. 3. When passing through areas with no overtaking conditions, such as railway crossings, intersections, narrow bridges, curves, steep slopes, tunnels, pedestrian crossings, or sections of urban roads with heavy traffic. Relevant information about overtaking is as follows: 1. After confirming that overtaking is possible, turn on the left turn signal, send an overtaking signal to the vehicle being overtaken, and wait for the vehicle ahead to yield. Maintain a safe distance from the vehicle being overtaken and pass it from the left side. 2. After overtaking, turn on the right turn signal and slowly steer back to the original lane without affecting the normal driving of the overtaken vehicle, then turn off the turn signal.