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 1262 - Ground Support Equipment
General
Section 1262.1 - Traffic to comply with signals, directives and signs

All traffic in or upon a public vehicular parking area, operational area, fuel storage area, public landing area, public ramp and apron area, public passenger ramp and apron area, public cargo ramp and apron area or public aircraft parking and storage areas must at all times comply with any lawful order, signal or direction of any authorized Port Authority representative. Where such traffic is controlled by traffic lights, signs, mechanical or electrical signals, or pavement markings, such lights, signs, signals and markings shall be obeyed unless an authorized Port Authority representative directs otherwise.