; and (ii) would violate subparagraph (E) or (F) of section 8438(b)(5) of title 5, United States Code, as added by paragraph (1); and (B) remove from the mutual fund window all investment vehicles identified under subparagraph (A). (3) Existing investments in impermissible mutual funds (A) Notice Not later than 30 days after the effective date described in subsection (c), the Executive Director shall notify each participant of the option to make an election under subparagraph (B). (B) Election During the 90-day period beginning on the day after the date on which the 30-day period described in subparagraph (A) ends, a participant may elect to have any covered sums credited to the account of that individual in the Thrift Savings Fund reinvested in accordance with section 8438 of title 5, United States Code, as amended by paragraph (1). (C) Mandatory reinvestment Beginning on the day after the date on which the 90-day period described in subparagraph (B) ends, the Board shall ensure that all covered sums with respect to which elections have not been made under that subparagraph are invested in the Government Securities Investment Fund established under section 8438(b)(1)(A) of title 5, United States Code. (4) Enforcement Section 8477(e)(3) of title 5, United States Code, is amended— (A) in subparagraph (B)(iii), by striking or at the end; (B) in subparagraph (C)(ii), by striking the period at the end and inserting ; or ; and (C) by adding at the end the following: (D) by any participant or beneficiary against the Board— (i) to obtain any appropriate equitable relief to redress a violation of subparagraph (E) or (F) of section 8438(b)(5); (ii) to enjoin any act or practice which violates subparagraph (E) or (F) of section 8438(b)(5)