How to legally operate an off road travel trailer on the road?

off road travel trailer must meet the following conditions to be legally put on the road:
1、 Vehicle restrictions
Traction qualification: Off road vehicles must have original factory traction qualifications (indicated in the "Quasi Total Traction Mass" column of the driving license), otherwise they can only tow trailers with a total mass ≤ 700kg.
Trailer specifications: Trailer length ≤ 8 meters, width ≤ 2.5 meters, height ≤ 4 meters, and total weight ≤ 700kg (limited to small passenger vehicles).
2、 Procedural requirements
Registration and registration: Trailers need to handle separate motor vehicle registration, hang yellow trailer license plates, and carry materials such as certificates of conformity and purchase invoices.
Certificate:
Driver's license: C1 driver's license can drive trailers with a total weight ≤ 4500kg, and larger sizes require B1/B2 driver's license.
Driver's license: Both the main vehicle and trailer must be carried.
3、 Safety and Insurance
Safety devices: Trailers must be equipped with brake lights, turn signals, etc., and must pass annual inspections.
Insurance: Trailers need to purchase commercial insurance (no compulsory insurance required).
4、 Other regulations
Speed limit on highways: Trailing RVs with a speed limit of ≤ 100 kilometers per hour.
No passengers allowed: Trailers are not allowed to carry passengers and require regular annual inspections (mandatory scrapping after 15 years).
Attention: If the off-road vehicle does not have towing qualifications, towing it without authorization may result in fines or orders to restore it to its original state.