US Department of Justice lists Justice.gov, Psilocybin psilocybin is a Schedule I substance Justice Department warns schedule 1 Justice.gov, Psilocybin risks associated with psilocybin-containing mushrooms lists Monitoring the Future Survey Schedule 1, classified same as heroin) https://www.justice.gov/archive/ndic/pubs6/6038/ Justice.gov, Psilocybin lists shrooms as Schedule I drugs Schedule I drug Schedule 1, classified same as heroin) lists