In a province, directors are mainly divided into three categories: departmental directors, such as the director of Guangdong Quality Supervision Bureau, the director of Shenzhen Education Bureau, and cities approved by the provincial capital Guangzhou or the State Council, are deputy departmental directors; Director-General (General prefecture-level cities, such as Dongguan Health Bureau, are at the director level, and the director of Shenzhen Baoan District Sports Bureau approved by Tianhe District of Guangzhou or the State Council, the provincial capital, is at the director level or deputy director level; Department-level directors, such as the director of the Seismological Bureau of Nanhai District, Foshan.
2. Whether the director is bigger or the mayor is bigger depends on which director is compared with which mayor. It is said that there are departmental, departmental and departmental directors in the province, but there are also directors at the central level. For example, the director of the State Administration for Industry and Commerce is a ministerial-level cadre; Mayors are divided into mayors of municipalities directly under the central government (ministerial level), mayors of larger cities approved by provincial capitals or the State Council (deputy ministerial level), mayors of prefecture-level cities (ministerial level) and mayors of county-level cities (ministerial level).
3. Public security organs are called the Ministry of Public Security at the central, provincial, municipal and county levels, and there can only be one public security director (director), because the number of posts in each unit is stipulated by. When the director is not appointed, the deputy director of the Public Security Bureau can preside over the overall work.