Hello, it is illegal not to file. You need to go to your local vehicle management office for filing, but unauthorized modification will generally not pass, and the security is too poor. It can't be said that it is illegal, but it is illegal to go on the road without passing the review after modification. There are fines ranging from 200 to 800, depending on the degree of illegal modification. More importantly, illegally modifying the traffic police may not only be fined, but also directly detain the RV.
At present, the modified car must be filed in the vehicle management office, but it is uncertain whether it can be filed for inspection.
Now there are strict regulations on the modification of ordinary cars, especially RV. There are many details in the modification of RV, and safety is a problem. At present, there are few filing materials about the registration of RV in China. After modification, your car has no qualified basis and cannot be put on file for inspection.