1. Submit a written application: both parents need to reach an agreement, and then go to the police station with the household registration book, ID card and children's household registration book.
2. The household registration management department fills in the certificate: obtain the certificate from the household registration management department, and then the parents of both parties fill in the relevant application form and submit relevant materials.
3. Examination and approval: After receiving the application, the police station will examine and approve it and submit it to the superior management department for examination and approval.
4. Modify the household registration book: After the approval, parents need to bring the household registration book and ID card to the police station to modify the household registration book information.
5. Apply for a new ID card: If you need to apply for a new ID card, you need to provide photos and other materials according to the requirements of the police station, and then apply.
It should be noted that different regions may have different policies and processes, so the specific procedures may be different. Parents are advised to consult the local household registration management department or police station before handling.