Montana Title 19. Public Retirement Systems § 19-3-512. Purchase of service credit from other public retirement systems

(1) Subject to 19-3-514, a member with at least 5 years of membership service in the public employees' retirement system may purchase service credit for:

(2) A member may not purchase more than 5 years of service credit under this section. To purchase this service credit, a member shall:

(3) Service credit purchased under this section may not be used in calculating a member's retirement benefit unless the member's last 5 years of service credit were earned under the public employees' retirement system. If, upon the member's retirement, the member's purchased service credit cannot be used in calculating the member's retirement benefit, the member must receive a refund of the amount paid to purchase the service credit, plus regular interest on that amount.