Iowa Code Title VIII. Transportation [Chs. 306-330B] § 306D.4. Scenic highway advertising

1. The department of transportation shall have the authority to adopt rules to control the erection of new advertising devices on a highway designated as a scenic highway or scenic byway in order to comply with federal requirements concerning the implementation of a scenic byways program.

2. Notwithstanding subsection 1, if an advertising device was lawfully erected along an interstate highway within the corporate limits of a city prior to designation of the highway as a scenic byway and, after such designation occurs, the advertising device is displaced due to the reconstruction, improvement, or relocation of the highway, the advertising device may be relocated to a location determined by the department to be substantially the same location, subject to approval by the federal highway administration, and shall not be considered an erection of a new advertising device, if all of the following apply: