(A) Stairways having four or more risers shall have a continuous full-length handrail on at least one side. The handrail shall be mounted no less than 34 inches nor more than 38 inches above the nosing of the stair treas.
(B) The handgrip potion of the handrail shall not be less than 1-1/2 inch and no more than two inches in cross-sectional dimension. The ends of the handrails shall be returned to the walls.
(C) Stairways that are 66 inches in width or more require handrails on both sides.
(D) Existing handrails that are not deemed to be hazardous by the code official or housing inspector are allowed to remain as they are.
Penalty, see § 116.999