Form: Verify your child for the childcare service.
Parents and guardians can use form CVF1 to verify a child for the childcare service. You must complete the form online and post it along with an original passport, birth certificate, or adoption certificate for the child. As the form cannot be saved, you should have all required information ready before you begin.
Source: https://www.gov.uk/government/publications/child-verification-cvf1. Summarised automatically from the official source — general information, not advice.