(A) In the event any part or provisions of this Building Code be held illegal or void, such shall not have the effect of making illegal or void any other part or provisions thereof. It shall be presumed in such event that this Building Code would have been enacted even had such illegal or invalid parts or provisions not been originally included, and the remainder of this Building Code shall continue in full force and effect, regardless of any extent to which such illegal parts or provisions may be integrated in this Building Code with such remaining portions.
(‘74 Code, § 150.66)
(B) The invalidity of any provisions of this Building Code as applied to existing buildings and structures, shall not be held to affect the validity of such provisions in its application to buildings and structures hereafter erected or altered.
(‘74 Code, § 150.67)