Code of Massachusetts Regulations
521 CMR - Architectural Access Board
Title 521 CMR 42 - GROUP 1 BATHROOMS
Section 42.2 - CLEAR FLOOR SPACE

Shall be as defined in 521 CMR 6.4, Clear Floor or Ground Space for Wheelchairs. Clear floor space shall be available at each fixture as shown below to enable users to reach fixture controls and to transfer out of a wheelchair. When a bathroom is adapted, the clear floor space must be able to be made free of obstructions, other than those shown in the diagram. The clear floor space for one fixture may overlap the clear floor space for other fixtures. The clear floor space for the tub or the water closet is measured from the closest edge of that fixture. The clear floor space for the sink may extend a maximum of 19 inches (19" = 483mm) under the sink. Wing walls may not intrude on the minimum clear floor space.