An alleged father who has been served a Notice of Paternity Proceeding may file a written denial of the allegation of paternity by delivering it to the Division in person or by mail within 20 days after service of the notice. If the Division does not receive a written denial of paternity or an acknowledgment of paternity within 20 days after service of a Notice of Paternity Proceeding, it may file a record of the proceeding in a court as a paternity proceeding.
10- 144 C.M.R. ch. 351, § 9-3