The technical secondary school diploma is sealed by the Municipal Education Bureau and the Provincial Education Department. According to the Education Law of the People's Republic of China, the graduation certificates of school graduates are issued by the provincial education administrative department, including the seals of the Municipal Education Bureau and the Provincial Education Department. The Municipal Education Bureau is the highest organ of the city's education management, responsible for coordinating the city's education work, formulating and implementing the city's education development plan, implementing education management, supervising and inspecting education administrative law enforcement, handling education administrative procedures, guiding school work, and organizing and participating in education examinations at all levels. The Provincial Department of Education is the highest organ of provincial education management, responsible for guiding, coordinating and supervising the development of education in the province, formulating and implementing provincial education laws and policies, organizing and implementing provincial education examinations and monitoring the quality of education, contacting and communicating educational affairs in various provinces across the country, keeping in touch with relevant state ministries and commissions and educational affairs in other provinces and cities on behalf of the provincial government, improving the education management system, implementing educational administrative procedures, and promoting education and teaching reform. Therefore, the technical secondary school diploma will be stamped by the Municipal Education Bureau and the Provincial Education Department.