Urban management approval is required, taking Chengdu as an example.

The Regulations on the Administration of Outdoor Advertising and Signboards in Chengdu has corresponding provisions:

Article 29 It is forbidden to set up signboards without authorization. Where a signboard is installed, a written application shall be submitted to the administrative department of urban management of the district (city) or county where it is located, and the following materials shall be submitted:

(1) a copy of the business license or a name certificate approved by the relevant authority;

(2) explanatory documents such as characters, production specifications, patterns, materials and installation positions of signboards;

(3) proof of ownership or right to use the business (office) premises.

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extended data:?

related laws and regulations of Chengdu on the administration of outdoor advertisements and signboards:

article 25 an applicant may apply to the administrative department for industry and commerce for the release and registration of outdoor advertisements only after obtaining the permission to set up outdoor advertisements or temporary outdoor advertisements.

No unit or individual may illegally occupy, dismantle, cover, alter or damage outdoor advertisements and their facilities set up according to law. If it needs to be demolished due to planning adjustment or public interests, it shall be compensated according to law.

article 27 the setters shall carry out safety inspection for them twice a year or more and make records; If it fails to pass the test, it shall be repaired or removed immediately. In case of abnormal weather such as gale and rainstorm, corresponding safety precautions should be taken.

Baidu Encyclopedia-"Regulations on the Administration of Outdoor Advertising and Signboards in Chengdu"