Can I be a security guard without a security certificate?

Article 18 of the Regulations on the Administration of Security Services, a security business unit shall recruit personnel who meet the requirements of security guards as security guards, and sign labor contracts with the recruited security guards according to law. Security practitioners and their security guards shall participate in social insurance according to law. Security practitioners shall, according to the needs of security service posts, regularly train security guards in legal and security professional knowledge and skills. "Regulations on the administration of security services" Article 41 Anyone who engages in security services without permission shall be given administrative penalties for public security according to law, and his illegal income shall be confiscated; If a crime is constituted, criminal responsibility shall be investigated according to law.