shall not be further reallocated and shall immediately revert to inclusion in the Move America volume cap as provided in clause (iv). (vi) Special rules Rules similar to the rules of paragraphs (3) and (4) of section 45D(b) shall apply with respect to clause (i). (B) Qualified infrastructure fund The term qualified infrastructure fund means— (i) a State infrastructure bank established under section 610 of title 23, United States Code, (ii) a water pollution control revolving fund established under title VI of the Federal Water Pollution Control Act ( 33 U.S.C. 1381 et seq.), (iii) a drinking water treatment revolving loan fund established under section 1452 of the Safe Drinking Water Act ( 42 U.S.C. 300j–12 ), or (iv) an equivalent fund established or designated by the State or any instrumentality thereof. In the case of a fund described in clause (ii) or (iii), the amount of any Move America investment shall not be included in determining the amount of State or other non-Federal contributions to such fund. (C) Qualified investment The term qualified investment means an investment (whether by loan, loan guarantee, or equity investment) in— (i) qualified projects, or (ii) in the case of a fund described in clause (i), (ii), or (iii) of subparagraph (B), projects and activities for which such funds are authorized to be used under any other provision of law. (3) Early termination (A) In general If at any time during the compliance period the fund which issued a Move America investment ceases to be a qualified infrastructure fund, or ceases and then recommences to be a qualified infrastructure fund, any date described in paragraph (1)(B) (including the date described in clause (i) thereof) occurring in— (i) the taxable year in which the fund ceased to be a qualified infrastructure fund, or (ii) any other taxable year in such period in which the fund is not a qualified infrastructure fund for the entire taxable year, shall not be treated as a credit allowance date for purposes of paragraph (1). (B) Compliance period