§ 151.141 REQUIREMENTS FOR LOADING SPACES.
   Every loading space, designed for one vehicle, shall conform to the requirements below, exclusive of any aisle or maneuvering area that may be required, and shall be designated by markings which clearly delineate each space, and which are laid and restored as often as necessary to maintain the delineation.
 
Minimum loading space width
12 feet
Minimum loading space length
50 feet
Minimum vertical clearance
14 feet