; or (ii) satisfy similar standards in the case of an individual retirement plan. (B) Correction by owner of individual retirement plan In the case of a correction by an owner of an individual retirement plan under subsection (d), the term inadvertent failure means a failure due to reasonable cause. (2) Plan loan corrections In the case of an inadvertent failure relating to a loan to a participant from a plan, such failure may be self-corrected under subsection (a) according to the rules of section 6.07 of Revenue Procedure 2018–52 (or any successor provision), including the provisions related to whether a deemed distribution must be reported on Form 1099–R. 118. Enhancement of 403 (b) plans (a) In general (1) Permitted investments Clause (i) of section 403(b)(7)(A) is amended to read as follows: (i) the amounts to be held in that custodial account are invested in regulated investment company stock or a group trust intended to satisfy the requirements of Internal Revenue Service Revenue Ruling 81–100 (or any successor guidance), and . (2) Conforming amendment The heading of paragraph (7) of section 403(b) is amended by striking for regulated investment company stock . (3) Effective date The amendments made by this subsection shall apply to amounts invested after December 31, 2018. (b) Amendments to the Investment Company Act of 1940 Section 3(c)(11) of the Investment Company Act of 1940 ( 15 U.S.C. 80a–3(c)(11) ) is amended— (1) by striking section 401 of the Internal Revenue Code of 1986; or and inserting section 401 of the Internal Revenue Code of 1986; or any custodial account meeting the requirements of section 403(b)(7) of the Internal Revenue Code of 1986 if (i) the arrangement is subject to title I of the Employee Retirement Income Security Act of 1974 ( 29 U.S.C. 1001 et seq.), or (ii) any employer making such arrangement available agrees to serve as a fiduciary for the arrangement with respect to the selection of the arrangement’s investments; or