(a) Notwithstanding any other law, a member subject to this chapter, a retiree receiving a cash balance annuity under this chapter, or the beneficiary of a member or retiree described by this subsection, who qualifies for a death or survivor benefit annuity or a disability retirement annuity under Chapter 814 is entitled to a cash balance annuity under this subchapter instead of the annuity otherwise provided under Chapter 814.
(b) The board of trustees may enter into contracts to provide additional death and disability benefits under this chapter.