Any antenna constructed in violation of this part, or in violation of any prior ordinance or regulation, is subject to immediate abatement. Any antenna that is lawfully constructed prior to the effective date of the ordinance codified in this title, and that does not comply with the requirements of this part, will be deemed a nonconforming use and will be subject to the provisions of Chapter 20.80 CMC. Such nonconforming use is subject to abatement in accordance with Chapter 20.80 CMC. (Ord. 690 § 4 (Exh. A), 2018).