(a) Upon approval by the board of the application for registration of an agent, there shall be issued to such registered agent an identification card containing the name and address of the distillery certificate broker, the name, address and physical description of the agent. There shall also be affixed to the identification card a photograph of the agent, and no identification card shall be valid until signed by both the distillery certificate broker and the agent and counter-signed by a representative of the board.

(b) Before any agent's registration can be changed from one distillery certificate broker to another, the identification card of such agent shall either be returned to the board by the broker under whom he is registered, or such broker shall file with the board a notice in writing that he has knowledge of and consents to the employment of such agent by the other broker.

(c) When the employment of any agent is terminated, the broker shall immediately notify the board and the identification card issued to the agent shall be surrendered to the board.