2. At present, the qualification certificates issued by the state are: junior worker, intermediate worker, senior worker, technician, senior technician and technical expert, with six grades.

3. This kind of vocational skill exam will be unified by the human resources and social security bureaus of all provinces and cities, which used to be called the labor bureau.

4. The examination will be held three or four times a year, and will be invigilated by the Labor Bureau or the People's Social Security Bureau. The test center is generally the formal baking training vocational skills training school designated by the Labor Bureau.