New York Codes, Rules and Regulations
Title 21 - Miscellaneous
Chapter XXIV - The Port Authority Of New York And New Jersey
Subchapter D - Air Terminals
Article 1 - John F. Kennedy International, La Guardia and Newark Airports
Part 1261 - Aircraft Operations
Starting, Taxiing, Towing and Parking
Section 1261.48 - Unattended aircraft to be secured in approved manner

No person shall park an aircraft or leave the same standing on a public landing area, public ramp and apron area, public passenger ramp and apron area, public cargo ramp and apron area, public aircraft parking and storage area, or operational area at an air terminal except at such places as may be prescribed or permitted by the Port Authority. When in public storage areas, those aircraft for which fittings are provided shall be required to make proper use thereof.