I want to install billboards on both sides of railway bridges on the highway. Which unit should I contact and go through the relevant procedures? (Except industrial and commercial)

First talk to the landowner or person in charge who needs to erect billboards on both sides of the bridge to discuss the leasing issue at this location

Then talk to the urban management about the billboard issue. You need to fill out an application and get the renderings.

Find an advertising company to make billboards

Feiyang, who makes advertising signs and indoor and outdoor decorations in Shenzhen, wishes you health and happiness every day!