The deputy mayor is a bureau-level chief, also known as the main hall bureau-level. In China, he is a civil servant. The level of bureau directors is 13 to 8. The director of the Environmental Protection Bureau is at the main hall level (bureau level), the district heads of prefecture-level cities are at the main hall level, and a few are at the main hall level. Director of Beijing Environmental Protection Bureau, director of county environmental protection bureau. Therefore, the deputy mayor has more power than the director of the environmental protection bureau.