Utah Code § 81-5-306: Proceeding for rescission.

(1) A signatory may rescind a declaration of paternity or denial of paternity by filing a voluntary rescission document with the Office of Vital Records and Statistics in a form prescribed by the Office of Vital Records and Statistics before the earlier of:

(a) 60 days after the effective date of the declaration or denial, as provided in Sections 81-5-303 and 81-5-304; or

(b) the date of notice of the first adjudicative proceeding to which the signatory is a party, before a tribunal to adjudicate an issue relating to the child, including a proceeding that establishes support.

(2) Upon receiving a voluntary rescission document from a signatory under Subsection (1), the Office of Vital Records and Statistics shall provide notice of the rescission, by mail, to the other signatory at the last-known address of that signatory.