According to the relevant regulations issued before, if it is necessary to return to work in the province, the employer shall apply for returning to work and report it to the local county (city, district) headquarters for review. The county (city, district) headquarters will feed back the audit opinions to the employer, and the employer will notify the personnel who need to return to work to apply for the health code through the "Hubei Huiban" APP or "Alipay" network platform. The headquarters of the county (city, district) where the personnel who need to return to work now live can inquire about the health status of the relevant personnel through the big data platform and issue the health certificate that has been isolated for 14 days. According to the big data comparison results and health certificates, the provincial government affairs open office will issue "green codes" to qualified personnel.