Is it illegal to post advertisements?

It is illegal to post small advertisements on the wall at will, which violates the Regulations on the Administration of City Appearance and Environmental Sanitation.

Legal basis:

Article 17 of the Regulations on the Administration of City Appearance and Environmental Sanitation, no unit or individual may scribble or depict on urban buildings, facilities and trees. Units and individuals post promotional materials on urban buildings and facilities. , must be approved by the city people's government administrative department of city appearance and environmental sanitation or other relevant departments. Outdoor advertisements, placards, galleries, windows, etc. should be set in cities with healthy content and beautiful appearance, and should be maintained, painted or removed regularly. The establishment of large-scale outdoor advertisements must obtain the consent of the administrative department of city appearance and environmental sanitation of the people's government of the city, and go through the examination and approval procedures in accordance with the relevant provisions.