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 without type approval behind an agricultural tractor with a maximum design speed of 40 km/h, the combination's maximum permissible speed is limited to 25 km/h. This reduction ensures safety because the trailer may not meet all standard regulations for higher speeds. Therefore, a "25" speed sign must be visibly displayed on the trailer to inform other road users of this speed restriction. The trailer does not require its own registered license plate in this case, as it is exempt from type approval and registration requirements when towed behind such tractors. Remembering these points helps ensure compliance and road safety.