Indiana Code Title 5. State and Local Administration § 5-10.2-8-2

Sec. 2. The board may elect to establish a voluntary supplemental retirement plan for political subdivisions.  A plan established under this chapter shall be governed by Section 457 of the Internal Revenue Code.  A plan established under this chapter shall be funded through employee salary deductions and may additionally have employer contributions, subject to the limits and provisions under Section 457 of the Internal Revenue Code.