No sewage is not allowed to apply for a food hygiene license, there must be a closed drain, the entrance to the drainage system should be installed with a water seal of the floor drain and other devices to prevent the entry of solid waste and turbid gas escape.

GB14881 "General Hygienic Standard for Food Production" stipulates the following:

5.1.2 Drainage facilities.

5.1.2.1 The design and construction of the drainage system should ensure that the drainage is smooth and easy to clean and maintain; it should be adapted to the needs of food production to ensure that the food and the water used for production and cleaning is not contaminated.

5.1.2.2 The inlet of the drainage system should be installed with a water seal, such as a floor drain, to prevent the entry of solid waste and the escape of turbid gas.

5.1.2.3 Drainage system outlets should have appropriate measures to reduce the risk of infestation.

5.1.2.4 Indoor drainage should flow from areas of high cleanliness to areas of low cleanliness and should be designed to prevent backflow.

5.1.2.5 Wastewater shall be treated in an appropriate manner prior to discharge to comply with national wastewater discharge regulations.

Food Service License, the license to operate in China's food service industry. According to the Food Safety Law, which came into effect on June 1, 2009, China officially launched the Food Service Permit on June 1, replacing the Food Hygiene Permit, which had been in use for decades.

The food safety law, which was formally introduced at the end of February 2009, establishes a segmented regulatory system for food safety in China, with the health, agriculture, quality inspection, industry and commerce, and food and drug regulatory authorities each responsible for regulating the food production, food distribution, and food and beverage service segments, respectively. According to this law, since June 1, 2009, the food and drug regulatory department replaced the health supervision department to regulate the food service segment, and replaced the food hygiene license with the food service license.