What vehicles cannot be overtaken when driving in the same direction?

[Quentin]

The vehicle in front is making a left turn, turning around, or overtaking; there is a possibility of encountering oncoming traffic; the vehicle in front is a police car, fire truck, ambulance, etc. performing emergency tasks. Overtaking is not allowed in areas with excessive pedestrians: Commonly encountered pedestrian crossings, intersections, or sections of urban areas with high traffic flow. Overtaking is not allowed on narrow bridges, steep slopes, etc.: In addition to these common sections where overtaking is prohibited, there are also narrow bridges, steep slopes, railway crossings, curves, tunnels, and other less frequently encountered sections where overtaking is not allowed. Overtaking is prohibited as long as the conditions for overtaking are not met.