For enlargements that do not increase the total floor area on the zoning lot to more than 1,373,700 square feet, in accordance with the provisions of Section 93-732 (Certification for public access areas on the Ninth Avenue Rail Yard), no temporary or permanent certificate of occupancy shall be issued by the Department of Buildings for more than 3,204,000 square feet of floor area developed or enlarged on the Ninth Avenue Rail Yard until the Chairperson of the City Planning Commission certifies to the Commissioner of Buildings that a phasing plan has been submitted requiring the West 31st Street Passageway and the Tenth Avenue Podium, required pursuant to paragraphs (c) and (d) of Section 93-72 (Public Access Areas at 450 West 33rd Street), respectively, to be substantially complete and open to and useable by the public.