The square dance violates Article 58 of the Law of People's Republic of China (PRC) on the Prevention and Control of Environmental Noise Pollution: Anyone who violates the provisions of this law and commits one of the following acts shall be given a warning by the public security organ and may also be fined:
(a) The use of loudspeakers in urban areas where noise-sensitive buildings are concentrated;
(two) in violation of the provisions of the local public security organs, organize entertainment, assembly and other activities in public places such as urban streets, squares, parks, etc., and use audio equipment to produce excessive volume that interferes with the surrounding living environment.
Square dancing is illegal.
People's Republic of China (PRC) Environmental Noise Pollution Prevention Act
Article 58 Anyone who violates the provisions of this Law and commits any of the following acts shall be given a warning by the public security organ and may also be fined:
(a) The use of loudspeakers in urban areas where noise-sensitive buildings are concentrated;
(two) in violation of the provisions of the local public security organs, organize entertainment, assembly and other activities in public places such as urban streets, squares, parks, etc., and use audio equipment to produce excessive volume that interferes with the surrounding living environment.