If a towed vehicle with its dimensions, after being hitched to a towing vehicle, makes normal visibility of the driver through the side rear-view mirrors impossible:
Such a vehicle combination may be used for traffic only on roads of the II. and III. classes and on local roads.
Such a vehicle combination may be used in road traffic.
The towing vehicle must be equipped with additional rear-view mirrors with a bigger overhang or with another device making the required view possible.