A contributing member may acquire credited service by utilizing a trustee to trustee transfer of funds, excluding any after tax employee contributions, from a member's individual retirement plan that meets the requirements of sections 403(b) or 457 of the Internal Revenue Code to pay the cost of purchase pursuant to § 3-12C-504, 3-12C-509, or 3-12C-511.
SDCL 3-12C-510