Article 45 of the Environmental Protection Law of the People's Republic of China, China implements a pollutant discharge permit management system in accordance with the law.Enterprises, institutions and other producers and business operators that implement the administration of pollutant discharge permits shall discharge pollutants in accordance with the requirements of the pollutant discharge license; those who have not obtained a pollutant discharge permit shall not discharge pollutants.The pollutant discharge permit system is an important means to strengthen enterprise supervision. The Implementation Plan for Environmental Impact Assessment Reform also clarifies the core position of the pollutant discharge permit system in the environmental management system.
The construction unit shall apply for or change the pollutant discharge permit before the discharge of the construction project in accordance with the relevant regulations. Enterprises should ensure the legality of their own sewage discharge during the production and operation cycle. Shanghai enterprises must comply with the requirements of the Detailed Rules for the Implementation of the Administration of Shanghai Pollutant Discharge Permits, monitor themselves, record the ledger, complete the disclosure of monitoring and implementation reports.
According to the relevant regulations, the following categories of enterprises must apply for and obtain a pollutant discharge permit:
1. Enterprises and institutions that emit industrial waste gas or toxic and harmful air pollutants
2. Production and operation unit of coal-fired heat source of central heating facilities
3. Enterprises and institutions that directly or indirectly discharge industrial wastewater and medical sewage into water bodies
4. Operating units of centralized treatment facilities for urban or industrial sewage
5. Other pollutant discharge units that should implement the management of pollutant discharge permit according to law







