There are some honorary certificates in the auto repair industry: auto machinery maintenance certificate, auto electrical maintenance certificate, auto body plastic maintenance certificate, auto body painting maintenance certificate, auto beauty decoration certificate, low-voltage electrician operation certificate, used car appraiser certificate, welding and hot cutting operation certificate, etc.

Car rental industry is called transportation service company. Because of the advantages of no insurance, no annual inspection and maintenance, and free replacement of models, it uses car rental instead of car purchase to control the cost of enterprises. This management method, which is very popular in foreign enterprises, is gradually favored by domestic enterprises, institutions and individual users.