(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 the preceding provision (division (A) of this section, the owner of any existing nonconforming structure or tree is hereby required to permit the installation, operation and maintenance thereon of markers and lights as shall be deemed necessary by the town to indicate to the operators of aircraft in the vicinity of the airport the presence of these airport obstructions. The markers and lights shall be installed, operated and maintained at the expense of the town.
(Ord. eff. 6-9-2003)