You are driving an agricultural tractor with a maximum design speed of 40 km/h. You want to tow a type-approval-exempt trailer behind this tractor. What must you bear in mind here?

When towing a trailer with an agricultural tractor that has a maximum speed of 40 km/h, German traffic regulations state that the maximum permissible speed for the combination vehicle (tractor and trailer) must be reduced to 25 km/h. This limit is in place to ensure safety, as trailers often do not possess the same braking capabilities as the towing vehicle.

In this case, a "25" speed sign must be displayed on the trailer to inform other road users of the speed limit. This is crucial for maintaining safe driving conditions on the road and for legal compliance.

The incorrect option regarding the trailer needing its own registered license plate is not applicable in this context, as type-approval-exempt trailers may not require such registration, depending on specific conditions outlined in German law.

Understanding these rules is important for ensuring safe driving practices and compliance with traffic regulations.