As of December 2019, at least 33 states have passed laws legalizing the use of marijuana, cannabidiol oil, or THC-A oil (referred to collectively as “medical marijuana”) for the treatment of certain medical conditions. As more states have legalized medical marijuana, legislatures in 11 states have enacted laws requiring the reporting of certain information related to medical marijuana to the state PDMP. These laws range from including patient registry identification card information in the PDMP to requiring medical marijuana dispensaries to report the dispensing of medical marijuana directly to the PDMP.