(1) For purposes of this section and section 24-710.06: (a) Distributee means the member, the member's surviving spouse, or the member's former spouse who is an alternate payee under a qualified domestic relations order as defined in section 414(p) of the Internal Revenue Code; (b) Direct rollover means a payment by the retirement system to the eligible retirement plan or plans specified by the distributee; (c) Eligible retirement plan means (i) an individual retirement account described in section 408(a) of the Internal Revenue Code, (ii) an individual retirement annuity described in section 408(b) of the code, except for an endowment contract, (iii) a qualified trust described in section 401(a) of the code, and (iv) an annuity plan described in section 403(a) of the code. For eligible rollover distributions to a surviving spouse, an eligible retirement plan means only subdivisions
(1)(c)(i) and (ii) of this section; and (d) Eligible rollover distribution means any distribution to a distributee of all or any portion of the balance to the credit of the distributee in the plan, except such term shall not include any distribution which is one of a series of substantially equal periodic payments, not less frequently than annually, made for the life of the distributee or joint lives of the distributee and the distributee's beneficiary or for the specified period of ten years or more and shall not include any distribution to the extent such distribution is required under section 401(a)
(9) of the Internal Revenue Code.
(2) For distributions made to a distributee on or after January 1, 1993, a distributee may elect to have any portion of an eligible rollover distribution paid directly to an eligible retirement plan specified by the distributee.
(3) The board shall adopt and promulgate rules and regulations for direct rollover procedures which are consistent with section 401(a)
(31) of the Internal Revenue Code and which include, but are not limited to, the form and time of direct rollover distributions.