After downloading "Jin Xin Office APP" and logging in successfully → Click "Health Code" on the home page → Fill in the health information and confirm the submission → Apply successfully. Apply for health code in advance. Tianjin health code is green, there is no need to isolate it. Tianjin health code is orange or red, which needs to be isolated.
Health codes are based on actual data and can be generated by citizens or people who have returned to work through online declaration and background audit. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city.