(1) "Manifest injustice” has the same meaning as provided in Arkansas Code § 24-7-202; and
(2) “Member”, for the purposes of the staff determination and appeal process, means any member of the Arkansas Teacher Retirement System as defined in Arkansas Code § 24-7-202 and includes:
(A) A beneficiary of a member;
(B) A retiree of the system;
(C) A guardian, an administrator, or an executor of a member, retiree, or beneficiary; or