The Florida Affidavit of Nonpaternity is a legal document used in the state when a father wishes to sign away his parental rights and responsibilities. It is used to remove the legal presumption of paternity and officially end all parental rights and responsibilities. There are two types of Florida Affidavit of Nonpaternity: voluntary and involuntary. A voluntary affidavit of nonpaternity is used when the father voluntarily agrees to sign away his parental rights and responsibilities. An involuntary affidavit of nonpaternity is used when the father is legally required to sign away his rights and responsibilities. In either case, the affidavit must be signed by both the father and the mother in the presence of two witnesses and a notary public. The affidavit must then be filed with the court in the county where the child was born. Once the affidavit is filed, it must be served on the Florida Department of Revenue. This will ensure that the father is no longer legally responsible for his child. The Florida Affidavit of Nonpaternity is an important legal document that establishes the rights and responsibilities of a father and a child in the state of Florida.