When did the modification information of Zheng Tong Family Health Code show that it has been verified?

Two minutes.

Users log in to the civil administration software with their real names, enter the Bamin health code service, choose to apply for family members, fill in family identity information and health information as required, and then apply for Bamin health code for their spouses, parents and children.

Each user can apply for Bamin health code for up to 8 family members, including 4 parents (including spouse's parents), 3 children and 1 married spouse. After the user successfully applies for family members, a switch health code entry will appear on the page. You can switch to check the family health code and use it at each entrance.