Twenty days. According to the public information on the internet, the police aviation certificate examination is an administrative preparation, and you will participate in the training. Paper police aviation certificate will be received 20 days after passing the exam, and electronic police aviation certificate can be found 5 days after passing the exam. The police aviation certificate refers to the certificate that the police aviation team of the public security police needs to hold. The duty of the police aviation team of the public security police is to perform tasks such as air tracking, surveillance, search and containment of criminal suspects in anti-terrorism activities, conduct traffic monitoring in important areas and highways, and engage in important national activities.