HB 179 addresses removal or maintenance of trees and vegetation near billboards on the state road system. Billboard owners would have to get a vegetation removal permit through the Department of Transportation. The law includes protection for trees that are considered historic or landmarks. For signs taller than 75 feet, in order to get a vegetation maintenance permit from the DOT, the owner would have to agree to reduce the height of the sign to 75 feet unless lowering the sign is precluded by a county code or regulation. If the height reduction involves a new support mechanism, like a new pole, then the owner is required to get a written footer inspection from the county. The Department of Transportation may refuse to grant a vegetation maintenance permit for any signs with material that is considered "obscene" in accordance with state or local law.