Iowa: UAGA Statute
142C.3(5)(a)
Except as otherwise provided in paragraph "g", and subject to paragraph "f", in the absence of a contrary indication by the donor, a person other than the donor is prohibited from making, amending, or revoking an anatomical gift of a donor's body or part if the donor made an anatomical gift of the donor's body or part under subsection 2 or an amendment to an anatomical gift of the donor's body or part under subsection 3.