Commercial properties are required to comply with sign codes and ordinances applicable in the city in which they are located. Signage in some commercial centers is controlled by operating agreements between property owners. In addition, most properties have an individual sign criteria incorporated into their leases. The sign criteria generally allow for a facade sign and placement on a monument sign, if available. Some properties allow placement on directory boards or under-canopy signs. In addition, signage may generally be installed on the inside surfaces of storefront windows. Banners, A-frames and pennants are generally not permitted by city codes, lease agreements or by individual property sign criteria.