The scope of the CCC certification of vehicle body brands must comply with the requirements of the implementing regulations. The vehicles must be installed on special vehicles and trailers such as tractor units, lorries and lorries, which are subject to the national mandatory standard GB 7258 "Technical conditions for the safety of motor vehicles". Used reflective body logo. The certification standard is the reflective logo of the truck and trailer GB 23254. Specific product inspection elements can be found in the implementation rules of CNCA-C11-13: 2014 Body Reflective Marker Accessories 2 "Automotive Reflective Marking Obligatory Certification Standards and Testing Items".