Xuzhou professional continuing education network open class is a municipal class. According to the relevant public information, the continuing education of professional and technical personnel is 72 hours/year, including 24 hours/year for public subjects. Candidates can log on to Xuzhou Professional and Technical Personnel Continuing Education Network for free study, and print the electronic certificate of public * * * subjects directly online when applying for professional titles. The primary qualification is announced by the county (city) district title management department. The intermediate qualification is announced by the Municipal Human Resources and Social Security Bureau. Senior qualification by the provincial industry bureau, industry association (society) in conjunction with the provincial department of human resources and social security jointly issued a document to announce the evaluation results.