(a) Any alterations made to elevators, dumbwaiters, or moving stairways after July 1, 1979, shall be made in conformity with the provisions of OBBC, the Ohio Elevator Code and this Building Code governing such alterations.
(b) Existing installations may be altered to obtain the advantage of any provisions of OBBC, the Ohio Elevator Code and this Building Code, provided the safety requirements governing such provisions are met.