The agent of the certificate shall not be signed by more than two people. From a legal point of view, it is better for the person in charge of the certificate and the agent not to be signed by the same person. The agent is only responsible for the specific business and cannot be signed by more than two people. The person in charge is responsible for the management and needs two people to sign. Therefore, the certificate administrator cannot sign more than two people. Certificates refer to certificates and documents used to prove identity, experience, etc.