The Department of Housing and Urban-Rural Development of Anhui Province will conduct a comprehensive investigation of registered engineers, registered architects, builders, supervision engineers, cost engineers and other professional and technical personnel in the field of engineering construction in the province (including Hefei), as well as relevant units and human resources service institutions, and seriously investigate and deal with illegal acts such as the holder's registered unit does not match the actual work unit, and the social security payment unit does not match the registered unit, selling and renting qualification certificates, providing false employment information, and providing information services for certificate registration in the name of employment introduction.