Section R403.1, General, is hereby deleted in its entirety and the following provisions shall be substituted therefor:

All exterior walls, foundation walls, bearing walls and support columns shall be supported on continuous concrete footings with minimum widths conforming to Table R403.1 and rebar reinforcement conforming to City of Topeka specifications for foundation walls and footings. Other approved engineered structural systems which shall be of sufficient design to accommodate all loads according to Section R301 and to transmit the resulting loads to the soil within the limitations as determined from the character of the soil shall be allowed. Footings shall be supported on undisturbed natural soils or approved engineered fill. Concrete footing shall be designed and constructed in accordance with the provisions of Section R403 or in accordance with ACI 332.