What four certificates does a cleaning project manager have?

Sanitation project manager, cleaning manager, garbage collection and transportation project manager, sanitation project manager, tender preparation technician.

To apply for the exam, you need to have a college degree in a university-related major and have worked in this major for more than three years. Bachelor degree or above in related major, and have been engaged in this profession for more than one year. Management and technical personnel with technical secondary school or higher vocational education and intermediate or above titles engaged in related work. Anyone who is engaged in urban environmental sanitation and garbage disposal and meets one of the above conditions may apply for the training examination for urban environmental sanitation and garbage disposal engineers.