National professional qualification certificates are divided into five categories:
Certificates from the Ministry of Labor, Ministry of Personnel, Ministry of Construction, Ministry of Tourism, and Ministry of Finance. The vocational qualification certificates at the national level are valid for life, but they need to be reviewed annually. And some industry vocational qualification certificates have validity period, and all of them are different.
China's vocational qualification certificates are divided into five grades:
Elementary (grade five), intermediate (grade four), senior (grade three), technician (grade two) and senior technician (grade one).
The Ministry of Labor and Social Security (MLSS), based on the Chinese People's **** and National Occupational Classification Dictionary (COCD), has determined a catalog of 87 occupations for which the State has stipulated the implementation of employment access. They are:
Surveying and placing workers, railroad line workers, railroad bridge and tunnel workers, turners, milling, grinding, boring, combined machine tool operators, machining center operators, numerical control turners, CNC milling, foundry workers, forging, welders, metal heat treatment, cold sheet metal workers, painting, assembly pliers, tool pliers.
Boiler Equipment Assembler, Motor Assembler, High and Low Voltage Electrical Assembler, Electronic Instrument Assembler, Electrician and Instrument Porter, Mechanic, Automobile Mechanic, Motorcycle Mechanic, Precision Instrument Repairer, Boiler Equipment Installer, Electric Equipment Installer, Maintenance Electrician, Computer Maintenance Worker, Manual Carpentry, and Fine Carpentry.