112 STAT. 2256 PUBLIC LAW 105-261—OCT. 17, 1998 "Nuclear materials courier 7 January 1, 1987 to the day before the date of the enactment of the Strom Thurmond National Defense Authorization Act for Fiscal Year 1999. 7.5 The date of the enactment of the Strom Thurmond National Defense Authorization Act for Fiscal Year 1999 to December 31, 1998. 7.75 January 1, 1999 to December 31, 1999. 7.9 January 1, 2000 to December 31, 2000. 8 January 1, 2001 to December 31, 2001. 7.5 After December 31, 2002.". 5 USC 8422 note. (2) Contributions under subsections (a) and (b) of section 8423 of title 5, United States Code, shall not be reduced as a result of that portion of the amendment made by paragraph (1) requiring employee deductions at a rate in excess of 7.5 percent for the period beginning on January 1, 1999, and ending on December 31, 2002. (j) AGENCY CONTRIBUTIONS UNDER FERS.— Paragraphs (l)(B)(i) and (3)(A) of section 8423(a) of title 5, United States Code, are each amended by inserting "nuclear materials couriers," after "firefighters,". (k) MANDATORY SEPARATION UNDER FERS. — Section 8425(b) of title 5, United States Code, is amended by inserting "or nuclear materials courier" after "law enforcement officer" both places it appears in the second sentence. 5 USC 8348 note. (1) PAYMENTS. —(1) The Department of Energy shall pay into the Civil Service Retirement and Disability Fund an amount determined by the Director of the Office of Personnel Management to be necessary to reimburse the Fund for any estimated increase in the unfunded liability of the Fund resulting from the amendments related to the Civil Service Retirement System under this section, and for any estimated increase in the supplemental liability of the Fund resulting from the amendments related to the Federal Employees Retirement System under this section. (2) The Department shall pay the amount so determined in five equal annual installments with interest computed at the rate used in the most recent valuation of the Federal Employees Retirement System. (3) The Department shall make payments under this subsection from amounts available for weapons activities of the Department. 5 USC 8331 note. (m) APPLICABILITY.— Subsections (b) through (1) shall apply only to an individual who is employed as a nuclear materials courier, as defined by section 8331(27) or 8401(33) of title 5, United States Code (as amended by this section), after the later of— (1) September 30, 1998; or (2) the date of the enactment of this Act. 5 USC 8331 note. (n) EFFECTIVE DATES.— (1) Except as provided in paragraph (2), the amendments made by this section shall take effect at the beginning of the first pay period that begins after the later of— (A) October 1, 1998; or (B) the date of the enactment of this Act.