New York Codes, Rules and Regulations
Title 21 - Miscellaneous
Chapter I - Waterfront Commission Of New York Harbor
Part 5 - Port Watchman
Hiring of Security Officers and Supervisory Security Officers
Section 5.23 - Employers subject to regulation

Any person, including carriers of freight by water and stevedores, any parent or subsidiary thereof, or any person who has a contract with such carrier of freight by water or stevedore to provide or to perform services as a guardian or protector of property on any pier or waterfront terminal, is subject to the provisions of sections 5.21 through 5.34 of this Part, inclusive, except when employing inland security officers.