1. After the actual code personnel implement the control measures, they will submit the decoding application to the community/township, and the community/township will verify the data and send it to the CDC's decoding mailbox.
2. Decoding materials include health code, travel card, recent nucleic acid test results, application form, letter of commitment, and basic instructions of the decoder. The application form needs to be stamped with the official seal of the community/township.
3. Decode it after approval, and decode it together with the bookbinder. Then the health code is immediately unbound. Health code is a personal two-dimensional code based on actual real data, which is generated by citizens or people who have returned to work on their own online declaration and background audit.