For purposes of determining the retirement benefits of foundation member conservation officers, for credited service earned before July 1, 1983, benefits shall be calculated pursuant to § 3-12C-1106 and for credited service earned after June 30, 1983, benefits shall be calculated pursuant to § 3-12C-1107. For purposes of credited service earned before July 1, 1983, a conservation officer has a normal retirement age of sixty-five. For purposes of credited service earned after June 30, 1983, a foundation member conservation officer has a normal retirement age of fifty-five.
SDCL 3-12C-1705