a nontax-qualified benefit equal to the difference between the benefit that would have been payable under section 88-84(a)(1) without applying the limit under section 401(a)(17) of the Internal Revenue Code of 1986, as amended, to compensation earned prior to July 1, 2005, and the benefit that is payable under section 88-84(a)(1) applying the limit under section 401(a)(17) of the Internal Revenue Code of 1986, as amended, to the compensation earned during the year immediately preceding the member's death.
HRS § 88-84.5