Abstract: The prevalence of research with biological specimens has led to a debate over what type of consent is needed to obtain biological specimens from minors and store them for future studies. In most cases, parental permission is needed to obtain samples from minors. In addition, almost all commentators and guidelines maintain that researchers need the consent of the donors if they want to continue to store the samples and make them available for future studies after the donors reach the age of majority. In this Ethics Rounds, we argue that this near-consensus view is mistaken on the grounds that the agreement of the parents at the time of obtaining samples provides sufficient permission to store them and use them in research even after the donors turn 18 years old.