A. Each dealer or company who has been issued a Class 1 Permit shall have in his full-time employ a person who shall be designated the Safety Supervisor to have charge of the company's Safety Operations. The person assigned this position shall be required to have a general knowledge of the characteristics of Liquefied Petroleum Gases, as well as its proper handling and utilization, along with a thorough knowledge and understanding of the National Fire Protection Association Pamphlet No. 58 and the State LP Gas Code, covering the storage and handling of Liquefied Petroleum Gases. Proof of such person's competency shall be evidenced by a written or oral examination, indicative as to the knowledge required to engage safely in the handling of Liquefied Petroleum Gases, as well as the regulations governing such operation.