Specifies that a parent's obligation to pay child support terminates when the child turns 18 or graduates from high school, whichever occurs later, with certain exceptions

This bill updates Missouri laws to allow a parent to request the cancellation of a child support order if they are later proven not to be the biological father through DNA testing. It applies specifically to parents who have already been ordered to pay support and provides a legal process for them to file a petition, undergo testing, and potentially have their obligations and past debt erased. The legislation includes strict rules, such as requiring the petitioner to pay for the testing and prohibiting the recovery of any money already paid, while also excluding cases involving adopted children. Additionally, if a parent was previously convicted of criminal child support neglect for the child in question, the bill allows them to request that this criminal record be expunged upon a successful paternity challenge.