; (2) by redesignating subsection (t) as subsection (s); (3) in subsection (s), as redesignated— (A) in paragraph (3)(C)(ii), by striking (as defined in subsection (s)(8)) ; and (B) by adding at the end the following: (7) In this subsection, the term chief law enforcement officer means the chief of police, the sheriff, or an equivalent officer or the designee of any such individual. ; and (4) by inserting after subsection (s), as redesignated, the following: (t) (1) Beginning on the date that is 90 days after the date of enactment of the Assault Weapons Ban of 2018 , it shall be unlawful for any person who is not licensed under this chapter to transfer a grandfathered semiautomatic assault weapon to any other person who is not licensed under this chapter, unless a licensed importer, licensed manufacturer, or licensed dealer has first taken custody of the grandfathered semiautomatic assault weapon for the purpose of complying with subsection (s). Upon taking custody of the grandfathered semiautomatic assault weapon, the licensee shall comply with all requirements of this chapter as if the licensee were transferring the grandfathered semiautomatic assault weapon from the licensee’s inventory to the unlicensed transferee. (2) Paragraph (1) shall not apply to a temporary transfer of possession for the purpose of participating in target shooting in a licensed target facility or established range if— (A) the grandfathered semiautomatic assault weapon is, at all times, kept within the premises of the target facility or range; and (B) the transferee is not known to be prohibited from possessing or receiving a grandfathered semiautomatic assault weapon. (3) For purposes of this subsection, the term transfer — (A) shall include a sale, gift, or loan