If, upon the death of a participant, former participant, or beneficiary, there is no valid designation of beneficiary on file with the committee, the beneficiary shall be, in order of priority, (a) surviving spouse, (b) surviving issue (including adopted ones) on a per stirpes basis, (c) surviving parents, or (d) the estate. The determination of the committee as to which persons, if any, qualify within the aforementioned categories shall be final and conclusive upon all persons. (Ord. 6837-NS § 1 (part), 2005)