; and (ii) on or after the date of enactment of this Act; and (B) incumbent, consistent with the requirements of this section. (c) Treatment of service performed by incumbents (1) Service on or after date of enactment Service performed by an incumbent on or after the date of enactment of this Act shall be treated as service performed as a law enforcement officer. (2) Service before date of enactment Service performed by an incumbent before the date of enactment of this Act shall, for purposes of subchapter III of chapter 83 and chapter 84 of title 5, United States Code, be treated as service performed as a law enforcement officer only if the incumbent submits a written election to the Director by the earlier of— (A) the date that is 5 years after the date of enactment of this Act; or (B) the day before the date on which the incumbent separates from the service. (d) Individual contributions for prior service (1) In general An incumbent who makes an election under subsection (c)(2) may, with respect to prior service performed by the incumbent, pay a deposit into the Fund equal to the sum of— (A) the difference between— (i) the amount that would have been deducted during the period of prior service under section 8334 or 8422 of title 5, United States Code, from the pay of the incumbent if the amendments made by this section had been in effect during the prior service; and (ii) the amount that was deducted during the period of prior service under section 8334 or 8422 of title 5, United States Code; and (B) interest on the amount described in subparagraph (A)(i), as computed under— (i) paragraphs (2) and (3) of section 8334(e) of title 5, United States Code; and (ii) regulations promulgated by the Director. (2) Effect of not contributing If an incumbent does not pay the full amount of the deposit described in paragraph (1)— (A) all prior service of the incumbent shall remain fully creditable as a law enforcement officer