The Sewer institution shall publicly announce the drainage area, the date to start use, the connecting procedure and the sewerage management rule before the start use of the Sewers.
Except otherwise permitted by the local competent authority, the Sewage within the drainage area shall be drained off in the Sewer subject to the public announcement.

The User shall be responsible for the management and maintenance of its own Drainage Facility.

The user's drainage facility shall be installed by a qualified user's drainage facility installation contractor or water supply pipe contractor. The technician employed by the contractor shall pass the technique exam and the training held by the central competent authority.
The regulations for management of the user's drainage facility installation contractor shall be set up by the central competent authority.

The User may not connect its Drainage Facility to the Sewer before it passes the Sewer contractor's exam. If it fails to pass the exam, the Sewer contractor shall order the User to correct within a limited time.
The standard for the User's Drainage Facility shall be set up by the central competent authority.

In case the User may not drain off without using another's Drainage Facility, it shall first obtain approval from the Sewer institution before connection and use, and shall share the expenses incurred from the installation, use and maintenance based on its benefited level.
If the User's Drainage Facility in the preceding Paragraph needs to be expanded or improved before connection and use, the expenses incurred from such expansion and improvement shall be borne by the User applying for such connection.

The Sewer institution may dispatch its personnel with evidencing documents to examine Users' Drainage Facilities and measure the water flow rate and water quality.

The standard water quality of the Sewage that the Sewer may contain shall be set up by the Sewer institution, and reported to authorities of the municipality or county/city for their approval and announcement.
In case the Sewage drained off by the User exceeds the standard stipulated in the preceding Paragraph, the Sewer institution shall order it to be corrected within a limited time. If the breach is material, it may notify it to stop use.