An off-street parking facility in the Manhattan Core may provide a gross unobstructed surface area less than the minimum size required by Section 13-27 (Minimum and Maximum Size of Parking Facilities) upon certification by the Chairperson of the City Planning Commission to the Commissioner of Buildings that the proposed layout of such parking facility, including, but not limited to, the arrangement of parking spaces, travel aisles and reservoir spaces, where applicable, is sufficient to accommodate the requisite vehicular navigation and turning movements associated with such a facility. In order to make such a determination, the applicant shall provide the Chairperson with dimensioned plan drawings that depict the proposed vehicular movement through the facility, including any relevant maneuverability or turning radius information.  

Where the Chairperson certifies that an accessory off-street parking facility may be reduced in size because vehicles will be limited in length, such restriction shall be noted on the certificate of occupancy.