What certificate is needed for tire repair?

A tire mechanic needs a professional certificate as an automobile mechanic. According to the technical regulations formulated by national vocational standards, vocational skills are divided into five levels, namely, national vocational qualification level 5 (primary skills), national vocational qualification level 4 (intermediate skills), national vocational qualification level 3 (advanced skills), national vocational qualification level 2 (technicians) and national vocational qualification level 1 (senior technicians). Auto repair is divided into types of work, such as chassis, engine, electrician and sheet metal.