Decriminalization vs. Legalization: What’s the Difference? (2026)

By James Buddsey · Updated October 16, 2026

Decriminalization means possessing a small amount of marijuana is no longer a crime, usually just a fine like a traffic ticket, while growing and selling stay illegal; legalization means adults can lawfully possess cannabis and, in most cases, buy it from licensed, taxed and regulated stores. As of October 2026, 24 states and D.C. have legalized adult use, and several more have decriminalized small amounts without legalizing. The evidence shows both sharply cut arrests, but only legalization creates a legal supply.

Decriminalization vs. Legalization at a Glance

What Decriminalization Means Legally

Decriminalization changes the penalty, not the legal status. Marijuana stays illegal, but possession of a small amount becomes a civil offense, handled with a fine and no criminal record, instead of a misdemeanor that can bring an arrest, jail time and a record that shows up on background checks. Amounts above the threshold, sales and cultivation remain crimes.

The details vary widely. A few current examples from our state guides:

• New Hampshire: 3/4 ounce or less is a civil violation with a $100 fine; more is a misdemeanor (New Hampshire guide).
• Louisiana: 14 grams or less brings a fine of up to $100, enforced by summons rather than arrest (Louisiana guide).
• Mississippi: a first offense for 30 grams or less is a $100 to $250 fine.

Some states sit in between. North Carolina, for instance, still treats up to half an ounce as a Class 3 misdemeanor, with a maximum fine of $200; the penalty is light, but it is still a crime (North Carolina guide).

What Legalization Means Legally

Legalization makes possession lawful for adults, usually 21 and older, up to a limit. Most legal states also license growers, processors and retailers, test products, set packaging rules and tax sales.

Legalization does not always mean stores. Some places legalized possession first and sales later, or not at all:

• Washington, D.C.: Initiative 71 legalized possession and home growing in 2015, but Congress has blocked legal recreational sales (D.C. Initiative 71).
• Virginia: adults may possess up to 2 ounces and grow 4 plants per household, but adult-use retail sales are not scheduled to start until July 1, 2027 (Virginia guide).

Neither approach changes federal law. Adult-use marijuana remains a Schedule I drug federally, and in April 2026 only FDA-approved products and marijuana held under a state medical license moved to Schedule III. See our federal marijuana law guide.

Which States Did Which: A Short History

Decriminalization came first. In 1972 the Shafer Commission, appointed by President Nixon, recommended that possessing small amounts no longer be a crime. Nixon rejected it, but Oregon decriminalized in 1973, and roughly a dozen states, including California and New York, followed during the 1970s. The movement then stalled for decades as the federal drug war intensified, as our war on drugs history explains.

A second wave arrived in the 2000s and 2010s, with states such as Massachusetts, Connecticut, Rhode Island, Vermont and Maryland reducing possession to a fine. Legalization followed: Colorado and Washington voters approved it in 2012, and by 2026, 24 states and D.C. had adult-use laws (see our state-by-state cannabis laws). Many states decriminalized first and legalized later, so decriminalization has often worked as a step toward legalization rather than an endpoint.

What the Evidence Shows

Arrests

Both policies cut arrests sharply. A 2018 study of five states that decriminalized between 2008 and 2014, by Richard Grucza and colleagues at Washington University in St. Louis, found large drops in possession arrests, about 75% for people under 21 and about 78% for adults, according to the university’s summary. Nationally, police still made at least 218,152 marijuana arrests in 2025, mostly for possession, according to FBI data compiled by NORML; our page on marijuana arrests by year has the full series. Under decriminalization, people can still be ticketed and, depending on the state, arrested for amounts over the threshold, and enforcement disparities can persist: in 2018 the ACLU found Black Americans were 3.64 times more likely than white Americans to be arrested for possession.

Youth use

The same Washington University study found no increase in youth cannabis use after decriminalization. A 2019 review of 41 studies in BMJ Open reached a similar conclusion for decriminalization and medical laws, while finding at most a very small increase after recreational legalization. Recent large studies of legalization mostly show no rise in teen use; details are in our page on legalization and teen marijuana use.

Supply and safety

This is the real dividing line. Decriminalization leaves the entire supply in the illicit market, with no testing, labeling or age checks at the point of sale, and no tax revenue. That was the argument of this page’s original 2011 version: decriminalization helps the person caught with a joint but keeps money flowing to illegal sellers. Legalization brings products into a regulated system, but it also creates a commercial industry with marketing, higher-potency products and new problems such as accidental edible poisonings in children. Our pros and cons of legalizing marijuana weighs those trade-offs in full.

A cautionary example

Decriminalization can also be reversed. Oregon’s Measure 110 made possession of small amounts of all drugs a civil violation in 2021, but after a fentanyl crisis and public frustration, the legislature made possession a misdemeanor again on September 1, 2024. Marijuana was not affected, since Oregon had already legalized it in 2014.

Decriminalization vs. Legalization FAQ

For adults 21+ in legal states. General information, not legal or medical advice.