In the United States, the non-medical use of cannabis is legalized in 24 states and decriminalized in 7 states, as of November 2023. Decriminalization refers to a policy of reduced penalties for cannabis offenses, typically involving a civil penalty for possessing small amounts, instead of criminal prosecution or the threat of arrest. In jurisdictions without penalty the policy is referred to as legalization, although the term decriminalization is sometimes used for this purpose as well.
Drug liberalization is a drug policy process of decriminalizing or legalizing the use or sale of prohibited drugs. Variations of drug liberalization include drug legalization, drug relegalization, and drug decriminalization. Proponents of drug liberalization may favor a regulatory regime for the production, marketing, and distribution of some or all currently illegal drugs in a manner analogous to that for alcohol, caffeine and tobacco.
Cannabis in Switzerland is illegal, though minor possession was decriminalised to a fine in 2012. Several cantons began to allow adults to cultivate and use cannabis in 2012, but this was struck down by federal courts. In 2016, four cities stated they were looking into establishing pilot cannabis clubs. The number of cannabis users in Switzerland is estimated to be around 500,000 among a population of 8 million.
In Colorado, cannabis has been legal for medical use since 2000 and for recreational use since late 2012. On November 7, 2000, 54% of Colorado voters approved Amendment 20, which amended the State Constitution to allow the use of marijuana in the state for approved patients with written medical consent. Under this law, patients may possess up to 2 ounces (57 g) of medical marijuana and may cultivate no more than six marijuana plants. Patients who were caught with more than this in their possession could argue "affirmative defense of medical necessity" but were not protected under state law with the rights of those who stayed within the guidelines set forth by the state. The Colorado Amendment 64, which was passed by voters on November 6, 2012, led to recreational legalization in December 2012 and state-licensed retail sales in January 2014. The policy has led to cannabis tourism. There are two sets of policies in Colorado relating to cannabis use: those for medicinal cannabis and for recreational drug use along with a third set of rules governing hemp.
In the early 21st century, advocacy for drug legalization has increased in Latin America. Spearheading the movement, the Uruguayan government announced in 2012 plans to legalize state-controlled sales of marijuana in order to fight drug-related crimes.
The legal history of cannabis in the United States began with state-level prohibition in the early 20th century, with the first major federal limitations occurring in 1937. Starting with Oregon in 1973, individual states began to liberalize cannabis laws through decriminalization. In 1996, California became the first state to legalize medical cannabis, sparking a trend that spread to a majority of states by 2016. In 2012, Washington and Colorado became the first states to legalize cannabis for recreational use.
In the U.S. state of Maine, marijuana (cannabis) is legal for recreational use. It was originally prohibited in 1913. Possession of small amounts of the drug was decriminalized in 1976 under state legislation passed the previous year. The state's first medical cannabis law was passed in 1999, allowing patients to grow their own plants. The cities of Portland and South Portland decriminalized the possession and recreational use of marijuana in 2013 and 2014, respectively.
Cannabis in Wisconsin is illegal for recreational use. Possession of any amount is punishable by up to 6 months in prison and a $1000 fine for a first offense. A second offense is punished as a felony with up to 3.5 years in prison and up to a $10,000 fine. At the local level, however, numerous municipalities and counties have decriminalized cannabis or lessened penalties for minor possession offenses. Medical use is legal only in the form of low-THC cannabis oil.
Cannabis in Iowa is illegal for recreational use if classified as marijuana but consumable hemp products including CBD products are legal for consumers to possess and registered retailers to sell. Possession of even small amounts of marijuana is a misdemeanor crime. The state has a medical program for patients with qualifying debilitating medical conditions that allows for the legal sale and possession of no more than 4.5g of THC per patient every 90-day period. Allowed modes of consumption are oral & topical forms including, but not limited to; tablets and tinctures, nebulizable inhalable forms, suppositories, and vaporization.
Cannabis in Louisiana is legal only for medicinal use; recreational possession of 14 grams or less is decriminalized punishable by a fine of no more than $100. Medicinal use is allowed with a physician's written recommendation for any debilitating condition. Prior to statewide decriminalization, possession of small amounts of marijuana was first decriminalized in the cities of New Orleans, Baton Rouge, and Shreveport.
Cannabis in Kansas is fully illegal, and possession of even small amounts is a misdemeanor crime. Cannabis is only legal in Kansas in the form of THC free cannabidiol oil, also known as CBD.
Cannabis in Texas is illegal for recreational use. Possession of up to two ounces is a class B misdemeanor, punishable by up to 180 days in prison and a fine of up to $2000. Several of the state's major municipalities have enacted reforms to apply lesser penalties or limit enforcement, however.
Cannabis in New York has been legal for medical purposes under New York law since 2016, and recreational purposes since 2021. As of 2022, recreational cannabis is for sale legally in the state, only through state-approved dispensaries.
Cannabis in the Czech Republic is illegal for recreational use, but personal possession has been decriminalized since 1 January 2010 and medical cannabis has been legal since 1 April 2013.
Cannabis in Germany has been legal for recreational usage by adults in a limited capacity since 1 April 2024. As of February 2024, it has been assessed that 4.5 million Germans use cannabis.
Cannabis in Latvia is illegal for recreational and medical purposes, but production of industrial hemp is permitted.
Cannabis in Mexico is legal for both recreational and medicinal purposes. It became legal for recreational purposes in June 2021, upon application and issuance of a permit from the health secretariat, COFEPRIS. On 29 June 2021, the Supreme Court of Mexico decriminalized the recreational use of cannabis. President Andrés Manuel López Obrador signed a bill that allows adults 18 and over to possess up to 28 grams of cannabis and grow up to six marijuana plants on their property.
In Thailand, cannabis, known by the name Ganja has recently had new laws passed through. Cannabis that has less than 0.2% THC, referred to as industrial hemp in USA, was legalised on 9 June 2022. Medicinal cannabis, with no THC restrictions, was made legal in 2018 but required patients to obtain a prescription from a medical practitioner. Recreational cannabis is still illegal according to Thai law.
The list includes and details significant events that occurred in the global history of national-level implementations of, or changes made to, laws surrounding the use, sale, or production of the psychoactive drug cannabis.
The Cannabis Act (C-45) of June, 2018 paved the way for the legalization of cannabis in Canada on 17 October 2018. Police and prosecution services in all Canadian jurisdictions are currently capable of pursuing criminal charges for cannabis marketing without a licence issued by Health Canada. The Supreme Court of Canada has held that the federal Parliament has the power to criminalize the possession of cannabis and that doing so does not infringe upon the Canadian Charter of Rights and Freedoms. The Ontario Court of Appeal and the Superior Court of Ontario have, however, held that the absence of a statutory provision for medical marijuana is unconstitutional, and to that extent the federal law is of no force and/or effect if a prescription is obtained. The recreational use of cannabis has been legalized by the federal government, and took effect on 17 October 2018.
