Whether Congress may, under the Commerce Clause and the Necessary and Proper Clause, apply the Controlled Substances Act to the intrastate cultivation and possession of marijuana for personal medical use authorized by state law.
Holding
Yes. Congress had a rational basis for concluding that exempting locally grown marijuana for personal medical use would undermine its comprehensive regulation of the interstate market in controlled substances.
Reasoning
The CSA is a comprehensive federal system regulating the manufacture, distribution, possession, and use of controlled substances. Congress found that local manufacture, distribution, and possession of controlled substances substantially affect interstate drug trafficking and that locally produced drugs cannot practicably be distinguished from drugs moving in interstate commerce. Marijuana’s Schedule I classification makes its manufacture and possession unlawful except in narrowly authorized research settings.
The Court treated Wickard v. Filburn as controlling. In Wickard, Congress could regulate wheat grown solely for a farmer’s own consumption because, in the aggregate, homegrown wheat affected the national wheat market by substituting for market purchases. Likewise, homegrown marijuana is a fungible commodity with an established interstate market. Congress could rationally conclude that exempting locally produced marijuana would affect supply and demand and create a source of diversion into the illicit market.
The constitutional inquiry was not whether Raich’s and Monson’s individual conduct substantially affected interstate commerce. Once Congress regulates an economic class of activity as part of a valid broader scheme, individual instances need not independently have a substantial effect. The Court needed only to determine whether Congress had a rational basis for concluding that the regulated class, taken as a whole, substantially affected interstate commerce or that excluding the local activity would undercut the federal scheme.
United States v. Lopez and United States v. Morrison did not require a different result. Those cases invalidated federal laws aimed at noneconomic activity that were not essential components of a larger regulation of economic activity. By contrast, the CSA directly regulates the production, distribution, and consumption of commodities in a nationwide market, and its prohibition of locally cultivated marijuana was an integral part of that economic regulatory system.
California’s decision to permit limited medical marijuana use could not narrow Congress’s otherwise valid commerce power. Under the Supremacy Clause, state law cannot displace a conflicting federal prohibition. Congress also could rationally reject the premise that California’s medical-marijuana regime would remain wholly separate from the broader marijuana market, given the risks of overproduction, diversion, and difficulty distinguishing lawful local marijuana from illicit marijuana.
The Court did not decide respondents’ substantive due process claim or their asserted medical-necessity defense because the Ninth Circuit had not reached those theories. It noted that marijuana’s scheduling may be challenged through the CSA’s administrative rescheduling procedures and through the political process.