N.Y. Comp. Codes R. & Regs. tit. 21 § 1290.31
No person shall (nor shall any occupant of space at the World Trade Center permit its officers, employees, agents, representatives or other persons who are connected with or are doing business with such occupant or who are at the World Trade Center for the purpose of visiting such space, to) operate any automotive or other vehicle in any area of the World Trade Center not designated for such use, or operate the same in any vehicular roadway, parking area, public area or street, in or adjacent to the World Trade Center, or park or allow any vehicle to stand in any such roadway, area or street, except in accordance with such signs, speed limits, lights, signals, pavement markings, directions, laws, ordinances, rules and regulations (of the Port Authority or of such other agency, municipality or other governmental authority having jurisdiction) as may be in force from time to time. No person shall park vehicles except in those portions of the parking area designated for that purpose by the Port Authority and except upon payment of such parking fees and charges as may from time to time be prescribed and if specific space is assigned to that person then only in the space so assigned. In the event that a person shall park in any space other than the specific space assigned to that person then that person shall pay to the Port Authority upon demand $25 per day per car parked in any area other than those designated.
N.Y. Comp. Codes R. & Regs. Tit. 21 § 1290.31