While marijuana continues to be classified as a Schedule I drug under the Controlled Substance Act, public opinion on marijuana use has shifted dramatically in favor of legalization in recent years. In a 2021 study conducted by Pew Research Center, an overwhelming 91% of adults in the United States believe marijuana should be legal for either medical and recreational use (60% for medical and recreational use and 31% for medical only). On Oct. 6, President Joseph Biden directed the Secretary of Health and Human Services and the Attorney General to review marijuana's current Schedule I status, potentially paving the way for decriminalization or legalization at the federal level.