Any card, badge or other means of official identification issued by the commission to any registrant shall be carried by the registrant on his person at all times when he is at work or at any pier or waterfront terminal. Any such card, badge or other means of official identification shall be returned to the commission promptly upon request and when otherwise required by these regulations.
N.Y. Comp. Codes R. & Regs. Tit. 21 § 4.10