N.Y.C. Admin. Code § 28-401.11: § 28-401.11 Term of license.

Except as otherwise provided in this code or by rule, all licenses issued by the commissioner shall expire three (3) years from the date of issuance thereof, and may be renewed every three (3) years thereafter without examination. The commissioner shall have authority to stagger the issuance of licenses for three-year terms. The term of an elevator agency technician license issued in accordance with the provisions of article 425 of this chapter shall be two (2) years.