Acknowledgement of Paternity
Parents may establish paternity under the Acknowledgment of Parentage Act, MCL 722.1001 et seq. by jointly signing an affidavit of parentage. An affidavit of parentage gives a child born out of wedlock or born or conceived during a marriage but not the issue of that marriage (as determined by a court of competent jurisdiction) the same status as a legitimate child.
Notice of Intent to Claim Paternity
A putative father may file a notice of intent to claim paternity before the birth of a child under the Michigan Adoption Code, MCL 710.33. Filing such a notice creates a rebuttable presumption that the person filing the notice is the father of the child and, even though filed under the adoption code, is.
Michigan Adoption Code
In an adoption action, a child may be legitimized on a finding that the putative father has established a custodial relationship with the child or has contributed regular and substantial support to the mother or child for 90 days prior to notice of a termination hearing that was served upon him. If the court finds that it is in the best interests of the child that the father be awarded custody of the child, the child will be legitimized for all purposes and paternity will be established. MCL 710.39.
Michigan Paternity Act
The Michigan Paternity Act, MCL 722.711 sets forth procedures for establishing the parentage of a child born out of wedlock. Most paternity actions in Michigan are brought through the paternity act.