Indiana Code Title 5. State and Local Administration § 5-10.2-2-11

Sec. 11. (a) Based on the actuarial investigation and valuation in section 9 of this chapter, the board shall determine:

(b) Based on the information in subsection (a), the board may determine, in its sole discretion, contributions and contribution rates for individual employers or for a group of employers. However, after June 30, 2018, the board shall segregate from its determination of contributions and contribution rates any amounts attributable to estimated future postretirement benefit increases, thirteenth checks, or other benefit changes or adjustments granted by the general assembly after June 30, 2018.

(c) The board shall require an employer to make a supplemental contribution to the fund in addition to the amounts described in subsection (a)(3) and (a)(4) in an amount necessary to pay the employer's share of the fund's actuarial unfunded liability that other employers would otherwise be required to pay because the employer's employees are becoming members of the plan under IC 5-10.3-12 or IC 5-10.4-8 instead of the fund.  The amount necessary to pay an employer's contribution under this subsection in full must be made in a lump sum or in a series of payments determined by the board.

(d) The board's determinations under subsection (a):

(e) If the board determines contributions and contribution rates for one (1) or more employers under this section differ from the contributions and contribution rates determined by the actuarial investigation under section 9 of this chapter, the board shall notify the interim study committee for pension management oversight of this fact by reporting the board's action to the legislative services agency in an electronic format under IC 5-14-6.