https://eu.tennessean.com/story/news/politics/2023/09/12/tennessee-house-bill-2698-paternity-parentage-law-dna-testing-child-birth/70830681007/

New law strikes 5 year limitation on challenging paternity.

I am not sure why it makes is illegal only to defraud the real parent. It should be illegal to defraud someone into believing their are the parent.