Each cemetery for which a certificate of authority is required shall be operated under the supervision of a manager who is qualified in accordance with the regulations adopted by the bureau. Each cemetery manager shall be required to successfully pass a written examination evidencing an understanding of the applicable provisions of this code and of the Health and Safety Code. A person shall not engage in the business of, act in the capacity of, or advertise or assume to act as, a cemetery manager without first obtaining a license from the bureau.