CANNABIS LAWS
24 states and DC have legalized recreational cannabis. 14 more have medical programs. 12 states still prohibit it entirely. The rules, limits, and penalties differ dramatically by state — and federal law applies everywhere.
Reviewed by the ZenWeedGuide Policy Team — laws verified
These states allow adults 21 and older to purchase, possess, and in most cases home-cultivate cannabis. Each state has its own possession limits, home grow rules, tax structure, and public consumption restrictions.
| State | Legalization Passed | Sales Began | Possession Limit (Flower) | Home Grow |
|---|---|---|---|---|
| Colorado | Nov 2012 (Amendment 64) | Jan 2014 | 1 oz | 6 plants (3 flowering) |
| Washington | Nov 2012 (I-502) | Jul 2014 | 1 oz | Prohibited |
| Alaska | Nov 2014 (Measure 2) | Oct 2016 | 1 oz | 6 plants (3 flowering) |
| Oregon | Nov 2014 (Measure 91) | Oct 2015 | 1 oz (public); 8 oz (home) | 4 plants |
| California | Nov 2016 (Prop 64) | Jan 2018 | 1 oz | 6 plants |
| Maine | Nov 2016 (Question 1) | Oct 2020 | 2.5 oz | 3 flowering + 12 immature |
| Nevada | Nov 2016 (Question 2) | Jul 2017 | 1 oz | 6 plants (if 25+ mi from dispensary) |
| Massachusetts | Nov 2016 (Question 4) | Nov 2018 | 1 oz (public); 10 oz (home) | 6 plants (12 per household) |
| Michigan | Nov 2018 (Proposal 1) | Dec 2019 | 2.5 oz | 12 plants |
| Vermont | Jul 2018 (S.54) | Oct 2022 | 1 oz | 6 plants (2 mature) |
| Illinois | Jun 2019 (HB 1438) | Jan 2020 | 30 g (non-resident: 15 g) | 5 plants (medical only) |
| Arizona | Nov 2020 (Prop 207) | Jan 2021 | 1 oz | 6 plants |
| Montana | Nov 2020 (I-190) | Jan 2022 | 1 oz | 4 plants (2 mature) |
| New Jersey | Nov 2020 (Public Question 1) | Apr 2022 | 6 oz | Prohibited |
| New Mexico | Jun 2021 (HB 2) | Apr 2022 | 2 oz | 6 plants (3 mature) |
| New York | Mar 2021 (MRTA) | Dec 2022 | 3 oz | 6 plants (3 mature) — home grow began 2023 |
| Connecticut | Jun 2021 (SB 1201) | Jan 2023 | 1.5 oz | 6 plants (3 mature) — home grow began 2023 |
| Rhode Island | May 2022 (HB 7593) | Dec 2022 | 1 oz | 6 plants (3 mature) |
| Maryland | Nov 2022 (Question 4) | Jul 2023 | 1.5 oz | 2 plants |
| Missouri | Nov 2022 (Amendment 3) | Feb 2023 | 3 oz | 6 plants (3 flowering) |
| Delaware | Apr 2023 (HB 1) | Mar 2025 | 1 oz | Prohibited initially |
| Minnesota | May 2023 (HF 100) | Phased rollout | 2 oz | 8 plants (4 mature) |
| Ohio | Nov 2023 (Issue 2) | Aug 2024 | 2.5 oz | 6 plants (3 mature) |
| Washington DC | Nov 2014 (Initiative 71) | N/A (gifting only; no retail due to Congressional rider) | 2 oz | 6 plants (3 mature) |
These states allow cannabis for qualifying patients with a physician recommendation but do not permit recreational adult-use sales or possession for the general public.
Florida • Alabama • Mississippi • Louisiana • Arkansas • Oklahoma • South Dakota • North Dakota • West Virginia • Virginia (transitioning) • Pennsylvania • New Hampshire • Hawaii • Utah
Note: Several of these states, including Florida and Pennsylvania, have had active adult-use legalization efforts. Status may change — always verify current law.
Some states that technically prohibit cannabis allow low-THC CBD products derived from hemp, or have very limited medical programs for specific conditions such as epilepsy. Under the 2018 Farm Bill, hemp-derived CBD with less than 0.3% THC is federally legal, which is separate from state cannabis law.
Idaho • Wyoming • Kansas • Nebraska • Indiana • Tennessee • Kentucky • Georgia • South Carolina • North Carolina • Wisconsin • Iowa
These states maintain full prohibition on cannabis including medical. Possession in these states is a criminal offense under state law, often with significant penalties. Federal law also applies regardless of state status.
| Rule Category | Most Restrictive | Most Permissive | Notes |
|---|---|---|---|
| Possession limit (flower) | Washington: 1 oz | Maine: 2.5 oz; New York: 3 oz | Most states: 1–2.5 oz |
| Home cultivation | Washington, NJ: prohibited | Minnesota: 8 plants; Michigan: 12 plants | Most: 3–6 plants |
| Excise tax rate | Maine: 10%; Oregon: 17% | Washington: 37%; Illinois: up to 25% | Higher tax can drive illicit market |
| Public consumption | Prohibited in all legal states | Denver CO: social consumption pilot | No legal statewide public use anywhere |
| Employment protections | Most states: limited | Minnesota, NJ: stronger employee protections | Varies significantly |
| Expungement | Many states: manual petition required | Minnesota, Illinois: automatic expungement | Significant equity variation |
No matter what your state has legalized, cannabis remains a Schedule I controlled substance under federal law. Federal law applies at all federal facilities, national parks, military bases, federal housing, US airports, and in all interstate commerce. A person can be fully compliant with their state’s cannabis laws and still face federal criminal charges. Key federal implications include:
For a full analysis, see: US Federal Cannabis Law: Schedule I, Banking and What It Means.
Crossing any US state border with cannabis is a federal crime — even when both states have legal cannabis.
Interstate commerce in cannabis violates the Controlled Substances Act. This includes driving across state lines, boarding a commercial flight (TSA operates under federal jurisdiction), or any other form of interstate transport. The fact that both your origin and destination state have legal cannabis provides no defense under federal law. This is one of the most misunderstood aspects of US cannabis law.
The pages below cover possession limits, home grow rules, penalties, dispensary access, and employer rights for each legal state.
24 states plus Washington DC have legalized recreational adult-use cannabis. The first were Colorado and Washington in 2012. The most recent include Minnesota (2023) and Ohio (2023). An additional 14 states have medical-only programs. 12 states fully prohibit cannabis.
No. Cannabis remains Schedule I under the Controlled Substances Act regardless of state law. Federal law applies on federal property, in federal courts, to federal employees, and in interstate transport. The gap between state legalization and federal prohibition creates a complex legal environment affecting banking, employment, housing, firearms rights, and immigration status for cannabis users.
Adults 21 and older may legally purchase and possess cannabis in the 24 states plus DC with recreational laws. However, consumption is restricted to private property in virtually all legal states — public consumption is prohibited statewide even in legal states. Always verify the specific possession limit and rules for the state you are in.
Most adult-use legal states permit home cultivation of 3 to 6 plants per adult or per household. Notable exceptions include Washington State and New Jersey, which prohibit home growing even for adults. Minnesota has one of the most generous home grow limits (8 plants per household). Michigan allows up to 12 plants per adult.