Non-emergency vehicles and sirens

Rule: It is not permitted to use a siren (or siren-like horn) on a non-emergency vehicle. This is a punishable offence.

Traffic logic: Remember the boy who cried wolf? If people get fooled by fake sirens, they may not give way when it is really required.

Driving hints: Give way to high officials with red lights on the car (no siren), as soon as convenient. However, this is not obligatory.