(A) Regulations not retroactive. The regulations prescribed by this subchapter shall not be construed to require the removal, lowering, or other change or alteration of any structure or tree not conforming to the regulations as of the effective date of this subchapter or any amendment thereto, or otherwise interfere with the continuance of a nonconforming use. Nothing contained herein shall require any change in the construction, alteration, or intended use of any structure, the construction or alteration of which was begun prior to the effective date of this subchapter, and is diligently prosecuted.
(B) Marking and lighting. Notwithstanding division (A) above, the owner of any existing nonconforming structure or tree is hereby required to permit the installation, operation, and maintenance thereon of the markers and lights as shall be deemed necessary by the Lincolnton-Lincoln County Regional Airport Authority to indicate to the operators of aircraft in the vicinity of the airport the presence of the airport obstructions. The markers and lights shall be installed, operated, and maintained at the expense of the county.
(Ord. passed 11-5-2001)