(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 growth not conforming to the regulations as of September 28, 1967, or to otherwise interfere with the continuance of any nonconforming use. Nothing herein contained shall require any change in the construction, alteration or intended use of any structure, the construction or alteration of which was begun prior to September 28, 1967 and is diligently prosecuted and completed within one year thereof.
(B) Marking and lighting. Notwithstanding the preceding provisions of this section, the owner of any nonconforming structure or growth is hereby required to permit, insofar as practicable, the installation, operation and maintenance thereon, or adjacent thereto, considering clearances as are required by the State Commerce Commission and the National Electrical Code, of markers or lights as shall be deemed necessary by the Municipal Airport Zoning Administration to indicate to the operators of aircraft in the vicinity of the airport the presence of the airport hazards. The markers and lights shall be installed, operated and maintained at the expense of the city.
(1990 Code, § 5-121 (Ord. 67-924, passed 9-18-1967)
Statutory reference:
Nonconforming uses, see ILCS Ch. 620, Act 25, § 22