N.Y.C. Admin. Code § 28-405.1: § 28-405.1 Hoisting machine operator license required.

It shall be unlawful for any persons to take charge of or operate any power-operated hoisting machine used for hoisting purposes or cableways under the jurisdiction of the department, unless such person is licensed under the provisions of this article.

Exceptions:

1. Operators of machinery that is exempted from the requirements of sections 3316.1 or 3319.1 of the New York city building code.

2. Operators of mobile cranes of a limited size and capacity, or operators of mobile cranes performing a limited use, and exempted from the requirements of this article in accordance with rules promulgated by the commissioner.

3. Operators of hoisting machines with a manufacturer's rated capacity of one ton or less.

4. Operators of power-operated scaffolds and window-washing machines.

5. Learners supervised in accordance with the rules of the department by a licensed hoisting machine operator.