Which restaurant has a higher food safety level? Please notice the "smiling face" posted on the wall. "Green smile face" means the restaurant can offer the highest level A safe food. 

The reporter learned from the Zhongshan Food and Drug Administration that the list of catering units rated “Grade A” food safety in Zhongshan for 2017 is publicized. Up to 121 catering units are included.

According to the “Food Safety Quantitative Classification Management Regulations on Catering Services in Guangdong Province”, catering units are brought in the quantitative classification management and will be identified grade A, B and C at least once a year. “Grade A” stands for well food safety with the sign “green smile face”; level B stands for middle food safety with the mark of "blue smile face"; level C stands for general food safety with the sign of "orange face".