; and (II) is serving a period of commitment at such institution; (ii) in the case of a temporary involuntary commitment or hold through a process established pursuant to section 2(a)(1)(B) of the End Purchase of Firearms by Dangerous Individuals Act of 2017 — (I) has been determined by a mental health professional, in accordance with section 5(c) of the End Purchase of Firearms by Dangerous Individuals Act of 2017 , to present a danger to others; and (II) is serving a period of commitment at such institution, or has been released from such institution for a period of less than 5 years; or (iii) in the case of a formal commitment by a court, board, commission, or other lawful authority, is serving a period of commitment at such institution, or has been released from such institution; ; (B) in paragraph (8), by striking or at the end; (C) in paragraph (9), by striking the comma at the end and inserting ; or ; and (D) by inserting after paragraph (9), the following new paragraph: (10) who has communicated to a mental health professional a serious threat to commit an act of physical violence against another identifiable person, for a period of 6 months after making such a threat, . 4. Guidelines (a) General guidelines for State reporting systems Not later than 16 months after the date of the enactment of this Act, the Secretary of Health and Human Services shall, pursuant to rulemaking and in accordance with subsection (d), establish guidelines for States and mental health professionals, with respect to establishing reporting systems under section 2(a)(1)— (1) to ensure determinations described in paragraphs (2) and (3) of section 2(a) of dangerousness and determinations described in section 2(a)(4) of serious threat for purposes of reporting information under section 2(a)(1) are administered properly; (2) to ensure that only individuals qualified to make such determinations are permitted to do so