(A) A non-conforming use shall not be extended, but the extension of a conforming use to any portion of a non-conforming building shall not be deemed the extension of such non-conforming use.
(B) A non-conforming use shall not be changed to a use of the same or greater non-conformity with the district regulations of the district in which it is located, and when so changed to a use of a greater conformity, shall not thereafter be changed to a use of lesser conformity.
(C) A non-conforming use shall not be altered, extended or restored so as to displace any conforming use.
(`92 Code, § 40-6-2)