The enterprise or sewage system that has acquired the approval documents or permits (documents) for their Pollution Control Measures, registered their redundant capacity, and met the following requirements must apply to the Issuing Authority for and carry out change registration of commissioned treatment before engaging in commissioned treatment of wastewater or sewage:
I. The competent authority did not impose punishment more than twice due to violation of Article 7 of the Act within one year before the application date. However, for the sewer-connected enterprise, the connection must not be rejected by the competent authority or it did not notify such enterprise to stop using the sewerage within one year before the application date.
II. The competent authority did not fin d that the discharged wastewater or sewage contained substances harmful to the health as announced under this Act and affected the public health within three years before the application date.
III. The competent authority did not impose a punishment by ordering suspension of work or business due to violation of the Act within three years before the application date.
IV. The competent authority did not ferret out rerouted discharge within three years before the application date.

Enterprises or sewage systems that are commissioned to treat wastewater or sewage (hereinafter referred to as the “Commissioned Party”) shall meet the following requirements:
I. The commission is limited to treatment of the wastewater or sewage in the same industry and of the same type. This is not applicable when the Issuing Authority gives it approval.
II. The daily volume of wastewater or sewage to be treated under commission shall not exceed the approved maximum daily redundant capacity.
III. Wastewater or sewage must be treated within 24 hours after receiving.

The party commissioning an enterprise or sewage system to treat wastewater or sewage (hereinafter referred to as the “Commissioning Party”) shall set up wastewater or sewage treatment/pre-treatment facilities or storage facilities to store wastewater or sewage.
The Commissioning Party and Commissioned Party shall set up independent and exclusive cumulative water measurement facilities at the inflow and outflow ends of the pipe or ditch.

Where wastewater or sewage cannot be treated under commission due to failure of the wastewater or sewage treatment/pre-treatment facilities, the Commissioned Party shall notify the Commissioning Party to stop transport and make improvement. The Commissioned Treatment shall be terminated if wastewater or sewage cannot be treated under commission for a period of more than 30 days and alteration of the approval documents or permits (documents) for Pollution Control Measures shall be made with the Issuing Authority.
In case the Commissioned party did not make the alteration referred to in the preceding paragraph, the Issuing Authority may directly alter the permit registration item.
The Commissioned Party shall record the reason why it cannot accept the commission, the time at which it notifies the Commissioning Party to stop the transport, and the improvement status, and shall retain the record as a reference for three years.

When receiving the notification on termination of the Commissioned Treatment from the Commissioned Party, the Commissioning Party shall collect and store its wastewater or sewage. Production of wastewater or sewage shall stop when the wastewater or sewage is stored for more than 30 days and approval of other pollution control measures is not acquired from the Issuing Authority. However, this is not applicable if the wastewater or sewage is not in compliance with the effluent standard as specified in the Waste Disposal Act and may be removed to a place outside the work environment using barrels, tank trucks or other non-pipe means or ditches.
The Commissioning Party shall record the time at which the Commissioned Party notifies it to stop the transport, daily production and storage volume of wastewater or sewage, and the number and quantity of storage facilities, and shall retain the record as a reference for three years.

Where the Commissioned Party violates relevant provisions of the Act twice or more within one year during the Commissioned Treatment, it shall not increase the volume of the wastewater or sewage to be treated under commission nor the number of counterparts within one year from the date on which the second violation occurs.
The Commissioned Treatment shall be terminated if the Commissioned Party meets one of the following requirements during the Commissioned Treatment:
I. The competent authority imposes punishment more than twice due to violation of Article 7 of the Act. However, for the sewer-connected enterprise, the connection must be rejected by the competent authority or it notifies such enterprise to stop using the sewerage.
II. The discharged wastewater or sewage contains substances harmful to the health as announced under this Act and the competent authority finds them affecting the public health.
III. The competent authority imposed a punishment by ordering suspension of work or business due to violation of the Act.
IV. The competent authority ferrets out rerouted discharge.