Generally speaking, the legal weight limit for a loaded trailer in the United States is 80,000 pounds (36,287 kg) Gross Vehicle Weight Rating (GVWR) for a combination vehicle, which includes the weight of the trailer itself, the cargo it is carrying, and the towing vehicle. However, some states have weight limits that are lower than this, and some have higher weight limits for certain types of trailers or loads.
In the European Union, the legal weight limit for a loaded trailer is set by Directive 96/53/EC, which specifies that the maximum weight of a vehicle on a single axle is 10 tonnes, and the maximum weight of a vehicle on two axles is 18 tonnes. However, some EU countries have national regulations that allow for higher weight limits, and some countries have exemptions for certain types of vehicles or loads.
For specific legal weight limits for loaded trailers in a particular jurisdiction, it is recommended to consult the relevant road transport regulations or contact the local transportation authorities.
