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1. Minimum maneuvering space
   
   In all districts, as indicated, for all accessory off-street parking spaces, open or enclosed, each 300 square feet of unobstructed standing or maneuvering area shall be considered one parking space, except as follows:
   1. Standard attended facilities
      
      An area of less than 300 square feet, but in no event less than 200 square feet, may be considered as one space, where the layout and design of the parking area are adequate to permit convenient access and maneuvering in accordance with regulations promulgated by the Commissioner of the Department of Buildings, or where the applicant for a building permit or certificate of occupancy certifies that such spaces will be fully attended.
      
      In any case where a reduction of the required area per parking space is permitted on the basis of the applicant’s certification that such spaces will be fully attended, it shall be set forth in the certificate of occupancy that paid attendants employed by the owners or operators of such spaces shall be available to handle the parking and moving of automobiles at all times when such spaces are in use.
   2. Attended facilities with parking lift systems
      
      For portions of an attended parking facility with parking lift systems, each individually lifted tray upon which a vehicle is stored shall be considered one parking space. Any other attended space not on a lifted tray shall be subject to the provisions of paragraph (a)(1) of this Section.
   3. Automated parking facilities
      
      For automated parking facilities, each tray upon which a vehicle is stored shall constitute one parking space. The term “tray” shall refer to the structural support for vehicle storage in both pallet and non-pallet vehicle storage systems.
      
      However, auxiliary parking trays in an automated parking facility may be exempted from constituting a parking space where the Commissioner of Buildings determines that such auxiliary parking trays are necessary to store and retrieve vehicles for the efficient operation of such automated parking facility.
2. Driveway access
   
   Driveways used to access required parking spaces must be unobstructed for a width of at least eight feet and a height of eight feet above grade and if connecting to a street, such driveway may only be accessed by a curb cut.
3. Minimum size for each parking space
   
   In no event shall the dimensions of any parking stall be less than 18 feet long and 8 feet, 6 inches wide.