Where sidewalks are provided at accessible parking spaces, a curb cut shall be installed at the access aisle of each accessible space or pair of spaces.
Exception: Where walkways and sidewalks are provided at temporary accessible parking spaces, there shall be a firm, stable path of travel, not less than 36 inches wide, from the temporary accessible parking spaces to said walkway or sidewalk. There shall be no abrupt changes in level greater than ½ inch. If there is a change of level greater than ½ inch, then vertical access shall be provided either via temporary curb ramps or via a temporary ramp.
521 CMR 23.5