(1) Benefits paid under this chapter shall not exceed the limitations of section 415 of the Internal Revenue Code that are applicable to governmental retirement plans.
(2) The Board of Trustees of the Arkansas Public Employees' Retirement System is authorized to promulgate all rules necessary to implement the limitations of section 415 of the Internal Revenue Code.
(3) The rules adopted by the board under this section shall be amended to reflect any changes in the content or application of section 415 of the Internal Revenue Code enacted by Congress or promulgated by the Internal Revenue Service.