Except as otherwise provided in section 633E.13, an interest in or power over property existing on July 1, 2004, as to which the time for delivering or filing a disclaimer under law superseded by this chapter has not expired may be disclaimed after July 1, 2004.
Iowa Code § 633E.16
2004 Acts, ch 1015, §23 2005 Acts, ch 38, §52, 53, 55