104.615.  Minimum monthly benefits. — 1.  Notwithstanding provisions of other sections of this chapter to the contrary, but subject to the provisions of subsection 2 of this section, the total minimum monthly benefit payable, before any actuarial adjustments or any cost of living adjustments in accordance with sections 104.415 and 104.612, to a member of the state employees' retirement system or a member of the transportation department employees' and highway patrol retirement system who retires under the provisions of section 104.080, 104.095, 104.100, 104.110, 104.140, 104.380, 104.400 or 104.410 shall not be less than fifteen dollars multiplied by the number of full years of creditable service of the member.  A minimum benefit under this section does not apply to any deferred normal annuity or any deferred partial annuity.  A minimum benefit under this section is applicable in the determination of any benefit payable under section 104.420 to a survivor of an employee who dies on or after January 1, 1995.  Special consultants shall give an oral summary of opinions on aging, if so requested, as an extra duty for which additional compensation shall be paid as provided in this section.  Any additional compensation payable to any member under the provisions of this section shall be consolidated with any other retirement benefits payable to such person, and funding for such compensation shall be provided as set forth in section 104.436.

  2.  In determining the amount due a member under the provisions of this section, the following provisions shall apply:

  (1)  Any election made by the member under the provisions of this chapter to receive the actuarial equivalent of the member's annuity in reduced monthly payments shall not increase the amount of any compensation due the member under the provisions of this section, and the determination shall be based on the amount the member's monthly payments would have been had such an election not been made;

  (2)  Any payments authorized by the member to be made from the monthly payments for payment of insurance premiums or other such purpose shall not increase the amount of compensation due the member under the provisions of this section, and the determination shall be based on the amount of the payments before such premium payments are made.