according to the relevant information, it's free. There is no charge for handling the pollution discharge permit, and the processing period is 31 working days. Processing flow:

1. The applicant submits an application.

2. The monitoring department monitors its environmental impact.

3. Go through the sewage declaration and registration.

4. Fill in the application form for pollutant discharge permit and prepare relevant application materials.

5. After submitting the application materials, the Environmental Protection Bureau will arrange the staff to inspect the applicant on the spot, and hold a sewage permit application meeting to collectively review the application materials.