Advocates of marijuana legalization argue that the budgetary impact of removing cannabis from Schedule I of the Controlled Substances Act and legalizing its use in the United States could save billions by reducing government spending for prohibition enforcement in the criminal justice system. Additionally, they argue that billions in annual tax revenues could be generated through proposed taxation and regulation. Patient advocates who want to keep the marijuana to themselves argue that by reclassifying marijuana, millions of Americans who are currently prevented from using medical marijuana would be able to benefit from its therapeutic value and medical benefits.