Logan's Law
From the Iowa DNR: Logan’s Law, named after Logan Luft, was enacted in 2019 and allows hunting, fishing and trapping license buyers to declare as an organ, eye and tissue donor, when purchasing hunting and fishing licenses, very similar to declaring when purchasing or renewing a driver’s license.
By registering as an organ donor you authorize your organs, eyes, and tissues to be donated at the time of your death. Organs, eyes and tissues will be recovered for the purpose of transplantation; however, in the event a donated organ, eye or tissue cannot be used for transplant, an effort will be made to use the donation for research.