; (3) in paragraph (4), by inserting or subsection (d) after this subsection ; and (4) in paragraph (5)— (A) by inserting and subsection (d) after this subsection ; and (B) by striking hereunder and inserting under such provisions . (c) Regulations; effective date (1) Regulations Not later than 1 year after the date of enactment of this Act, the Secretary of the Interior shall promulgate regulations to define the term minimal quantities for purposes of subsection (d)(1)(A) of section 42 of title 18, United States Code, as added by subsection (a)(2). (2) Effective date Subsection (d) of section 42 of title 18, United States Code, as added by subsection (a)(2), shall take effect on the date that is 1 year after the date of enactment of this Act.