Wisconsin JC-1646, Consent to Adoption is a document used in Wisconsin to provide consent for the adoption of a minor child. It is typically signed by the parent(s) or guardian(s) of the child and is necessary for the adoption to proceed. It can also be signed by a birth parent who is not the legal parent. There are three different types of Wisconsin JC-1646, Consent to Adoption: 1. Consent to Adoption by Parent or Guardian: This type of document is used by a parent or guardian of the child to give consent for the adoption. 2. Consent to Adoption by Birth Parent Who Is Not Legal Parent: This type of document is used by a birth parent who is not the legal parent of the child to give consent for the adoption. 3. Consent to Adoption by Court Order: This type of document is used by a court to give consent for the adoption.