19-20-409. Transfer of service credits and contributions from public employees' retirement system. (1) An active member may at any time before retirement file a written application with the retirement board to purchase all of the member's previous service credit in the public employees' retirement system. The amount that must be paid to the retirement system to purchase this service under this section is the sum of subsections (2) and (3).
     (2) The public employees' retirement system shall transfer to the teachers' retirement system an amount equal to 72% of the amount paid by the member.
     (3) The member shall pay either directly or by transferring contributions on account with the public employees' retirement system an amount equal to the member's accumulated contributions at the time that active membership was terminated, plus accrued interest. Interest must be calculated from the date of termination until a transfer is received by the retirement system, based on the interest tables in use by the public employees' retirement system.
     (4) A member who purchases service from the public employees' retirement system in the teachers' retirement system must have completed 5 years of membership service in the teachers' retirement system to be eligible to receive creditable service pursuant to 19-20-402, 19-20-403, 19-20-404, 19-20-410, or 19-20-426.
     (5) The retirement board shall determine the service credits that may be transferred.
     (6) If an active member who also has service credit in the public employees' retirement system before becoming a member of the teachers' retirement system dies before purchasing this service in the teachers' retirement system and if the member's service credits from both systems, when combined, entitle the member's beneficiary to a death benefit, the payment of the death benefit is the liability of the teachers' retirement system. Before payment of the death benefit, the public employees' retirement board must transfer to the teachers' retirement system the contributions necessary to purchase this service in the teachers' retirement system as provided in subsections (2) and (3).
     (7) (a) If the teachers' retirement board determines that an individual's membership was erroneously classified and reported to the public employees' retirement system, the public employees' retirement board shall transfer to the teachers' retirement system the member's accumulated contributions and service, together with employer contributions plus interest.
     (b) For the period of time that the employer contributions are held by the public employees' retirement system, interest paid on employer contributions transferred under this subsection (7) must be calculated at the short-term investment pool rate earned by the board of investments in the fiscal year preceding the transfer request.
     (c) Any employee and employer contributions due as calculated in 19-20-602, 19-20-605, 19-20-608, and 19-20-609, plus interest, are the liability of the employee and the employing entity where the error occurred.
     (8) A member who participated in the public employees' retirement system defined contribution plan provided for in Title 19, chapter 3, part 21, may purchase creditable service for the time spent as a participant in the defined contribution plan if:
     (a) the member is vested in the teachers' retirement system and has completed at least 1 full year of active membership in the teachers' retirement system following the member's public employees' retirement system service;
     (b) for each full year or portion of a year to be purchased pursuant to this subsection (8), the member contributes the actuarial cost of the service based on the most recent valuation of the system; and
     (c) the member has withdrawn the member's money in the member's public employees' retirement system defined contribution plan account or has rolled over the amount required to purchase service in accordance with this subsection (8).
     (9) Creditable service purchased under subsection (8) must be determined according to the laws and rules governing service credit in the public employees' retirement system.

     History: En. Sec. 2, Ch. 290, L. 1983; amd. Sec. 3, Ch. 690, L. 1989; amd. Sec. 2, Ch. 64, L. 1991; Sec. 19-4-409, MCA 1991; redes. 19-20-409 by Code Commissioner, 1993; amd. Sec. 26, Ch. 412, L. 1995; amd. Sec. 9, Ch. 442, L. 1997; amd. Sec. 10, Ch. 45, L. 2001; amd. Sec. 5, Ch. 282, L. 2009; amd. Sec. 3, Ch. 366, L. 2013; amd. Sec. 3, Ch. 389, L. 2013; amd. Sec. 18, Ch. 210, L. 2015.