Psilocybin decriminalization in the United States means that states may decide to make it so that people won't get in trouble with the law if they have the drug psilocybin, which is found in certain kinds of mushrooms. This means that instead of getting arrested and having a criminal record, people could just get a ticket like they would for a traffic violation or be told to get rid of the mushrooms. This is a way to make sure people aren't punished too harshly for having psilocybin. In some places, possession of psilocybin is already no longer a crime.