While decriminalization of psilocybin in Denver, Colorado and Oakland, California, mushrooms are not legal for recreational to use or sell anywhere in the United States. However, psilocybin and mushrooms have known therapeutic uses. Mycology is an integral component of Robison Law's dietary supplement and research compliance expertise.

At the federal level, the United States regulates and criminalizes psilocybin mushrooms through the Psychotropic Substances Act, the Comprehensive Drug Abuse Prevention and Control Act and Controlled Substances Act. All U.S. states have state level laws that do that make psilocybin unlawful on some level. That said, mycology is the door to the many wonders of nature including dietary supplements, nutrition and research.