N.Y.C. Admin. Code § 28-401.19.3.1: § 28-401.19.3.1 Rigger license.

Any licensed rigger who has been found guilty after proceedings before the environmental control board or other adjudicative proceedings of violating section 28-404.1 or 28-401.9 of the administrative code or sections 3314.1.1 and 3314.4.3.1 of the New York city building code, or of failing to ensure that workers have certificates of fitness required pursuant to this code or applicable rule three times within any six-month period, shall be subject to immediate suspension of his or her license pending a hearing and determination in accordance with the provisions of this code.