History of Cannabis Legalization: Key Dates to Know

The history of cannabis legalization has been marked by a series of legislative changes that have gradually transformed public policy in several regions of the world.

After several decades dominated by prohibition, some countries have begun to experiment with different approaches: tolerance, decriminalization, medical access, or regulated legalization.

From Dutch coffee shops to the reforms adopted in Uruguay, Canada, and Germany, these developments illustrate the diversity of regulatory models. To understand this transformation, here is a timeline of the key milestones in the legalization of cannabis.

Not all of these steps amount to full legalization. They represent different levels of reform in cannabis policy.

1976: The Netherlands Paves the Way for a Policy of Tolerance

The Origins of the Dutch Model

In 1976, the Netherlands reformed its opium legislation and established a distinction in its control policy between substances posing different risks. Cannabis is subject to a specific policy.

The the authorities choose to tolerate, under certain conditions, the sale of small quantities in establishments that would later become famous: coffee shops. The goal is, in particular, to separate the cannabis market from that of drugs considered to pose higher risks. This tolerance stems from prosecution guidelines rather than an authorization enshrined in law. It requires compliance with several conditions, including a ban on advertising, sales to minors, and public nuisances.

Is cannabis legal in the Netherlands?

Contrary to popular belief, cannabis was not legalized in the Netherlands in 1976. Retail sales are tolerated under certain conditions, but production and distribution have long remained prohibited outside of authorized schemes.

This situation has created what is sometimes referred to as the «back door» problem of coffee shops: sales may be tolerated, while the supply chain remains legally problematic. This situation leaves little control over the quality and origin of the products and makes production and distribution vulnerable to criminal activity.

The Closed-Loop Experience (2023–2029)

Pour répondre à ce problème, le gouvernement néerlandais teste depuis le 15 décembre 2023 une chaîne d’approvisionnement légale dans dix communes. Les premières ventes réglementées ont lieu à Tilburg et à Breda. Le 17 juin 2024, tous les coffee shops participants peuvent vendre des produits réglementés, puis, depuis le 7 avril 2025, ils ne vendent plus que ceux-ci. Soixante-quinze coffee shops participent, pour une phase expérimentale prévue sur quatre ans.

Le premier rapport de suivi, publié le 15 septembre 2026, constate que la chaîne d’approvisionnement fonctionne, avec une gamme plus large et des prix moyens de la fleur plus bas dans les communes concernées. Il estime toutefois qu’il est trop tôt pour juger les effets sur la santé, la consommation, la sécurité ou le marché illégal.

1996: California Becomes a Pioneer in Medical Cannabis

Proposition 215

On November 5, 1996, California voters approved Proposition 215, also known as Compassionate Use Act, with 55.6 % of the vote. This initiative allows certain patients to use cannabis for medical purposes, in accordance with the conditions set forth in state law.

California thus becomes the first U.S. state to adopt a law broadly authorizing the medical use of cannabis through a referendum. This decision marks a major milestone in the evolution of U.S. regulations. However, cannabis remains illegal under federal law, creating an ongoing conflict between the state and the federal government.

A Gradual Recognition of Medical Uses

The California reform paves the way for new discussions on the potential therapeutic uses of cannabis. Other U.S. states are gradually adopting their own measures.

The models vary by region, particularly with regard to eligible medical conditions, procedures for prescription or medical referral, and distribution requirements. Medical cannabis is thus becoming one of the main drivers of modern legislative reforms.

2005: Federal law prevails

On June 6, 2005, in the ruling Gonzales v. Raich, the U.S. Supreme Court ruled that the federal Controlled Substances Act is a valid exercise of federal authority over commerce, even with regard to medical cannabis grown at home in accordance with California law. State laws therefore do not provide protection against the enforcement of federal law.

2012: Colorado and Washington—A Historic Turning Point in the United States

In November 2012, voters in Colorado and Washington State approved initiatives legalizing recreational cannabis for adults, with 55.32 % and 55.70 % of the vote, respectively. These decisions marked a significant turning point with several decades of prohibition.

For the first time in the United States, states are authorizing the creation of regulated cannabis markets for adults. The regulations include rules governing production, distribution, sales, and taxation.

The first legal sales then began in 2014: on January 1 in Colorado, followed by Washington in July. It is important to note that these reforms pertain to state law and do not automatically remove the restrictions imposed by U.S. federal law.

2013: Uruguay became the first country to legalize recreational cannabis

In December 2013, Uruguay passed a landmark law regulating cannabis. It became the first country to establish, at the national level, a legal framework for the production of and access to recreational cannabis.

The Uruguayan model is based on significant government intervention. It provides for several regulated channels of access, including personal cultivation, members-only clubs, and distribution through pharmacies under certain conditions.

La mise en œuvre de ces dispositifs s’effectue progressivement au cours des années suivantes : les ventes en pharmacie ne commencent que le 19 juillet 2017. Il faut être citoyen ou résident, s’enregistrer et choisir une seule des trois voies. En 2017, les achats étaient plafonnés à 40 g par mois.

Why did Uruguay choose to legalize it?

The Uruguayan reform is based, in particular, on a desire to regain control of a market that was previously underground. The authorities are seeking to limit the influence of illegal trafficking and to better regulate the distribution of these products. This policy makes Uruguay a leading voice in international debates on alternatives to prohibition.

The International Narcotics Control Board considers this law to be in violation of the 1961 Convention. To understand this debate, read our article on the 1961 Single Convention.

2018: Canada legalizes cannabis nationwide

Le 17 octobre 2018, le Canada devient le premier pays du G7 à légaliser le cannabis récréatif au niveau fédéral. La Loi sur le cannabis, qui a reçu la sanction royale le 21 juin 2018, établit un cadre national concernant la production, la distribution et la possession. Elle poursuit plusieurs objectifs, notamment la protection de la santé publique, la limitation de l’accès des mineurs et la lutte contre le marché illégal.

A system regulated by the provinces

The Canadian model combines federal rules and provincial regulations. As a result, terms of sale, distribution channels, and certain restrictions vary by jurisdiction. Legalization in Canada represents an important case study for examining the health, economic, and social consequences of cannabis regulation.

Une révision officielle de la loi, lancée en septembre 2022, a rendu son rapport final le 21 mars 2024. Elle formule 54 recommandations et relève une baisse de 95% des accusations de possession entre 2017 et 2022.

2001: Portugal decriminalized the use of all drugs

En juillet 2001, le Portugal retire la sanction pénale de la détention de drogues pour usage personnel, dans la limite d’une quantité correspondant à environ dix jours de consommation. Cette réforme ne vise pas le cannabis seul : elle concerne toutes les drogues.

A person stopped for possession below this threshold, with no suspicion of drug trafficking, is referred to a drug abuse deterrence committee composed of three members, including a legal expert. The committee may impose sanctions, but its primary goal is to assess the individual’s care needs. Drug trafficking remains a crime punishable by several years in prison.

Portugal is therefore an example of decriminalization, not legalization: production and sale remain prohibited.

2021–2026: Malta, Luxembourg, Germany, and the Czech Republic

Le 14 décembre 2021, le Parlement maltais adopte une loi autorisant certaines formes de possession, de culture personnelle et d’accès au cannabis par l’intermédiaire d’associations réglementées. Les adultes peuvent porter 7 g, conserver 50 g à domicile et cultiver quatre plants non visibles de l’extérieur. Les deux premières licences d’associations datent du 24 octobre 2023 : chacune compte 500 membres au plus, qui peuvent obtenir jusqu’à 50 g par mois. Il ne s’agit pas d’un marché commercial libre comparable à certains États américains.

En juillet 2023, le Luxembourg autorise également, sous conditions, la culture domestique de quatre plants par foyer et la consommation privée de cannabis. La consommation en public et la possession de plus de 3 g en public restent interdites.

Le 1er janvier 2026, la République tchèque autorise à son tour la culture de trois plants et la possession de 100 g à domicile pour les personnes de 21 ans et plus, avec 25 g autorisés en déplacement. La vente reste interdite.

These examples show that legalization can be limited to certain practices without permitting widespread commercial sales.

2024: Germany Adopts Partial Legalization

Le 1er avril 2024, l’Allemagne met en application une réforme majeure de sa législation sur le cannabis. Le texte autorise notamment, sous conditions, la possession de certaines quantités et la culture personnelle par les adultes : 25 g en public, 50 g à domicile et trois plants par adulte.

Il prévoit également la possibilité de cultiver collectivement du cannabis au sein d’associations non commerciales réglementées, de 500 membres au plus.

Cette réforme, même incomplète car ne proposant pas pour l’instant la vente de cannabis, représente un tournant important pour la politique européenne des stupéfiants.

La loi fait l’objet d’une évaluation officielle : la coalition au pouvoir a prévu de l’évaluer en laissant toutes les options ouvertes, sans annoncer son abrogation. L’Organe international de contrôle des stupéfiants a jugé les mesures allemandes incompatibles avec les conventions internationales dans son rapport 2023.

Outside Europe and North America: South Africa, Mexico, Thailand

Dans plusieurs pays, ce sont les tribunaux qui ont ouvert la voie. Le 18 septembre 2018, la Cour constitutionnelle d’Afrique du Sud juge que l’interdiction de l’usage, de la possession et de la culture privés par un adulte porte atteinte au droit à la vie privée. L’achat, la vente et la consommation en public restent interdits.

Le 29 juin 2021, la Cour suprême du Mexique déclare inconstitutionnelle l’interdiction de l’usage non médical et demande au gouvernement et au Congrès de légaliser l’usage récréatif, mais une loi d’ensemble restait alors en attente au Congrès.

En novembre 2020, la Thaïlande retire le cannabis de sa liste des stupéfiants dans une logique d’usage médical. Des boutiques se sont ensuite multipliées, ce qui a conduit les autorités à chercher à restreindre les ventes.

Decriminalization, tolerance, and legalization: What are the differences?

These trois notions sont souvent confondues. La différence tient à deux questions : l’usage est-il encore une infraction, et la production et la vente sont-elles autorisées ?

Decriminalization

Decriminalization involves eliminating certain criminal penalties or changing their nature for specific behaviors. It does not necessarily mean that production and sale become legal. Portugal is a case in point: use is no longer a criminal offense, but trafficking remains a crime.

In France, the flat-rate administrative fine of 200 euros, which took effect on September 1, 2020, does not decriminalize use: the offense still exists; only the procedure has changed. To learn more, read our article on the’fines for cannabis users.

Tolerance

Tolerance refers to a situation in which certain practices remain legally prohibited but are not systematically prosecuted when specific conditions are met. Dutch coffee shops have historically exemplified this approach.

Legalization

Legalization involves making certain activities lawful within a framework defined by law. It may pertain to possession, personal cultivation, medical distribution, or commercial sale. The rules vary greatly from country to country.

What International Treaties Say

These distinctions also matter in international law. The 1961 Convention allows for flexibility regarding the treatment of users (Article 36), but limits production, trade, and possession to medical and scientific purposes (Article 4, paragraph c). According to legal scholars Walsh and Jelsma, decriminalizing use or implementing harm-reduction policies therefore remains legally distinct from opening up a non-medical market. For more information, read our article on the 1961 Single Convention.

What does the future hold for cannabis legalization?

Changes in cannabis policies depend on many factors: public health, safety, the economy, international commitments, and political decisions. Experiences in different countries are gradually making it possible to compare various regulatory models. However, the consequences of legalization cannot be reduced to a single outcome.

They depend, in particular, on the legal age, access requirements, prevention measures, marketing regulations, and the effective enforcement of controls. The debate therefore remains open regarding which models are best suited to public health and regulatory objectives.

Status as of October 30, 2026

Les données ci-dessous évoluent et sont révisées régulièrement.

Conclusion: A Gradual Transformation of Cannabis Policies

The history of cannabis legalization has not followed a uniform trajectory. From the Netherlands’ 1976 policy of tolerance to the European reforms of the 21st century, countries have adopted very different approaches.

Some prioritize medical access, while others prioritize personal use or the creation of a regulated market. This diversity shows that legalization is less a one-size-fits-all model than a set of legal and political choices.

FAQ – Timeline of Cannabis Legalization

Which country was the first to legalize recreational cannabis?

Uruguay was the first country to legalize recreational cannabis nationwide, in December 2013. Sales at pharmacies did not begin until July 19, 2017.

When was cannabis legalized in Canada?

Federal legalization of recreational cannabis took effect on October 17, 2018.

Has cannabis been legal in the Netherlands since 1976?

No. The Netherlands has implemented a policy of conditional tolerance, not full legalization. Since December 2023, a pilot program has been testing a legal supply chain for coffee shops in ten municipalities.

Which U.S. state was the first to legalize medical cannabis?

California was the first state to enact a comprehensive medical cannabis law through a ballot initiative in 1996.

When did Germany legalize cannabis?

Partial legalization took effect on April 1, 2024.

What is the difference between decriminalization and legalization?

Decriminalization removes criminal penalties for use, without authorizing production or sale. Legalization makes certain activities lawful within a framework established by law.

Is cannabis legal at the federal level in the United States?

This does not apply to adult use, which remains on Schedule I. As of April 22, 2026, medically authorized cannabis is classified as a Schedule III substance.

Do these legalizations comply with international conventions?

The International Narcotics Control Board does not believe this is the case for Uruguay and Germany. Other legal experts argue that there is room for interpretation. To learn more, read our article on the 1961 Single Convention.

Sources and References

Official Texts and Institutional Sources

• Canada Gazette, Decree Establishing the Effective Date of the Cannabis Act (SI/2018-52).
• Health Canada, Final Report on the Legislative Review of the Cannabis Act, March 21, 2024.
• Dutch government, experimental phase of the closed-loop experiment, December 10, 2024.
• DEA, cannabis reclassification efforts.
• U.S. Supreme Court, Gonzales v. Raich, 545 U.S. 1 (2005), an article published by Cornell LII.
• EUDA, Uruguay: Recreational Cannabis Sales Begin in Pharmacies, 2017.
• UN Info, article on Uruguayan law and the INCB's position.

Research and Analysis

• RAND Europe, Evaluating the Experiment with a Closed-Door Coffeeshop Chain for Cannabis in the Netherlands.
• Oxford Human Rights Hub, South Africa decriminalizes the private use, possession, and cultivation of cannabis.
• Ballotpedia, History of Marijuana Ballot Measures and Laws.
• Mental health, OFDT's Assessment of Fifty Years of Criminal Justice Response.
• Drug Policy Facts, Portugal’s Legal Framework on Drugs (a website that supports the reform).

Law firms and industry sources

• Saul Ewing, Alert Regarding Reclassification to Schedule III.
• Gleiss Lutz, Cannabis Legalization: What Plans Does Germany’s Incoming Government Have?, April 2025.
• Cansativa, Outlook 2026, January 8, 2026 (company in the sector).
• Mondaq, Cannabis law takes effect in Malta.
• Regulatory Oversight, Pending Marijuana Rescheduling Put on Hold, October 2026.

Press and Specialized Websites

• NORML, Luxembourg and Czech Republic (an organization that supports reform).
• Cannadelics, Malta's cannabis club associations are officially up and running, October 2023.
• NW News Network, Not much pot, but so what: Washington kicks off marijuana sales, July 7, 2014.
• Al Jazeera, Mexico: The Supreme Court, June 29, 2021.
• Fortune, Thailand Tightens Rules on Cannabis Sales, June 26, 2025.
• The Paper, A UN board says legalization violates treaties, March 2024.
• Wikipedia, Proposition 215 (secondary source).

See also on Newsweed

• 1961 Single Convention
• History of Cannabis Prohibition in France: The 1970 Law
• Fines for Cannabis Users