Pursuant to chapter 1-26, the board shall adopt rules regulating the maximum annual benefit that may be paid to a member. The rules shall be consistent with maintaining the tax qualification of the system. No benefit may exceed the limitations imposed by § 415 of the Internal Revenue Code. For the purposes of administering the limitations imposed by § 415, the term, limitation year, means a period extending from July first of one calendar year through June thirtieth of the following calendar year.
SDCL 3-12C-711