1, search Beijing Healthcare Applet on Alipay.
2. Click on my health code for self-inquiry.
3. After face verification, you can see the commuting sign.
4. The "commuting" sign disappears, indicating that the negative certificate of nucleic acid test has exceeded the validity period. As long as an authoritative nucleic acid testing institution is selected for testing, Beijing "Health Treasure" will give a green code and a "commuting" sign according to the latest nucleic acid negative results.