<P> In the United States, the use and possession of cannabis is illegal under federal law for any purpose, by way of the Controlled Substances Act of 1970 . Under the CSA, cannabis is classified as a Schedule I substance, determined to have a high potential for abuse and no accepted medical use--thereby prohibiting even medical use of the drug . At the state level, however, policies regarding the medical and recreational use of cannabis vary greatly, and in many states conflict significantly with federal law . </P> <P> The medical use of cannabis is legal (with a doctor's recommendation) in 29 states, the District of Columbia, and the territories of Guam and Puerto Rico . Seventeen other states have laws that limit THC content, for the purpose of allowing access to products that are rich in cannabidiol (CBD), a non-psychoactive component of cannabis . Although cannabis remains a Schedule I drug, the Rohrabacher--Farr amendment prohibits federal prosecution of individuals complying with state medical cannabis laws . </P> <P> The recreational use of cannabis is legal in 9 states (Alaska, California, Colorado, Maine, Massachusetts, Nevada, Oregon, Vermont, and Washington) plus the District of Columbia, and decriminalized in another 13 states plus the U.S. Virgin Islands . Commercial distribution of cannabis is allowed in all jurisdictions where cannabis has been legalized, except Vermont and the District of Columbia . Prior to January 2018, the Cole Memorandum provided some protection against the enforcement of federal law in states that have legalized, but it was rescinded by Attorney General Jeff Sessions . </P> <P> There are currently three cannabinoid drugs (Marinol, Syndros, and Cesamet) that can be prescribed in accordance with federal law . The drug cannabidiol cannot legally be prescribed (as with whole - plant cannabis), due to the fact that the Drug Enforcement Administration considers it a Schedule I drug . Despite this classification, a number of online retailers sell CBD products to all 50 states, claiming such products are derived from industrial hemp plants and therefore legal . The federal government has so far not taken action against these retailers . </P>

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