MI HB6344

Redefines "child born out of wedlock" to include children born during a marriage but determined by court not to be the biological issue of that marriage.

Allows a putative father to bring a paternity action within one year of birth if the mother was married at conception/birth, but only if specific conditions are met: mutual acknowledgment of biological relationship with DNA testing at 99% or higher probability, or separation/non-marriage at conception with affidavit and consent to testing, or mother's written acknowledgment with demonstrated parenting time.

Prohibits putative fathers convicted of criminal sexual conduct under Michigan Penal Code sections 520b-520e from bringing paternity actions.

Establishes DNA identification profiling at 99% or higher probability as creating a presumption of paternity, and requires labs to conduct additional testing when multiple putative fathers show greater than 99% probability until all but one is eliminated.

Updates references from "family independence agency" to "department of human services" throughout the statute.