Permanent protest posters allowed? Kauferinger MdL submits a request to the government. A building permit is required for permanently anchored, larger signs, the state government responded to a request from MdL Gabriele Triebel.
According to case law, this also includes "advertising systems, which are technically made of wood, sheet metal, glass, plastics and similar materials and are (at least indirectly) firmly connected to the ground" The district office is responsible for posters and advertising on local roads.