Unified appraisal by Ministry of Human Resources and Social Security (former Ministry of Labor and Social Security). Pass the appraisal, and issue the corresponding level of People's Republic of China (PRC) vocational qualification certificate in accordance with the relevant provisions. Assistant enterprise trainers are awarded the third-class certificate of national vocational qualification, enterprise trainers are awarded the second-class certificate of national vocational qualification, and senior enterprise trainers are awarded the first-class certificate of national vocational qualification.