Walls shall be capable of structurally supporting wall cabinets so that the inside bottom surface of the cabinet is capable of being located between 42 inches (42" = 1067mm) and 54 inches (54" = 1372mm) above the floor.
In Group 2B units, the wall cabinets shall be mounted so that the inside bottom surface of the cabinet is no higher than 48 inches (48" = 1219mm) from the floor.
521 CMR, § 45.7