Is Marijuana Still Illegal in Arizona?

By the Law Office of Robert P. Jarvis | Mesa, Arizona Criminal Defense

Arizona voters passed Proposition 207 in November 2020, legalizing recreational marijuana for adults. Since then, dispensaries have opened across Mesa, Chandler, Gilbert, and the rest of the East Valley. Cannabis is advertised on billboards. Adults buy it openly.

So marijuana is legal in Arizona now — end of story, right?

Not even close.

Every week, people in Maricopa County are arrested, charged, and prosecuted for marijuana-related offenses. Some are facing felonies. Some had no idea they were breaking the law. The gap between what people think the law says and what it actually says is wide — and that gap is exactly where criminal charges happen.

What Prop 207 Actually Legalized

The Smart and Safe Arizona Act (Prop 207) legalized recreational marijuana for adults 21 and older. Under current Arizona law, adults may legally:

• Possess up to 1 ounce of marijuana (or up to 5 grams of marijuana concentrate) in a public place
• Keep up to 2.5 ounces stored at home (the amount in excess of 1 ounce must be in a locked container)
• Grow up to 6 marijuana plants at home for personal use, out of public view and in a locked space (maximum 12 plants per household if two or more adults reside there)
• Purchase marijuana from a licensed dispensary with a valid ID showing age 21 or older
• Use marijuana on private property with the property owner’s permission

If your situation fits cleanly within those boundaries, you are operating within the law.

The moment you step outside any one of those boundaries, however, you may be committing a criminal offense.

What Is Still Illegal — And Where People Get Caught

Possession Over the Legal Limit

Possessing more than 1 ounce in public is still a crime in Arizona. The severity depends on how much you have:

• More than 1 ounce but less than 2.5 ounces in public: Petty offense (civil fine, no criminal record — but still a violation)
• More than 2.5 ounces: Class 6 felony
• More than 4 pounds: Class 4 felony, with presumptive prison time

People buying in bulk, splitting large purchases with friends, or carrying product from a dispensary in an amount that seems reasonable to them routinely exceed these limits without realizing it. A single large purchase from a dispensary can put you over the public possession limit before you even leave the parking lot.

Marijuana Concentrate and Edibles — The Limits Are Different

Marijuana concentrate — including vape cartridges, wax, shatter, and oil — has a separate and much lower legal possession limit of 5 grams in public. This catches a lot of people off guard.

If you carry two or three vape cartridges, you may already be at or over the legal limit for concentrate. A gram of concentrate is significantly more potent than a gram of flower, and the law treats them as a separate category with stricter limits.

Edibles fall under the general marijuana weight rules, but the THC content in edibles is regulated at the point of sale — homemade edibles given away or sold to others can create additional legal exposure.

Selling or Distributing Without a License — Still a Serious Felony

Selling marijuana without a state-issued dispensary license remains a serious felony offense in Arizona, regardless of legalization.

• Sale or transfer of 2 pounds or less: Class 3 felony, carrying 2 to 8.75 years in prison
• Sale or transfer of more than 2 pounds: Class 2 felony with mandatory prison time
• Sale to a person under 21: Felony with enhanced penalties

This includes casual transactions between friends. Selling a small amount to a coworker, splitting the cost of a large dispensary purchase and accepting reimbursement in a way that looks like a sale, or “fronting” product and expecting payment later — all of these can be charged as sales offenses under Arizona law. Prosecutors in Maricopa County do not need proof of a profit motive. Transfer with or without payment is the standard.

Marijuana and Vehicles — Multiple Ways to Get Charged

This is one of the most active enforcement areas in Arizona right now. Three separate legal issues can arise around marijuana and vehicles:

Driving under the influence of marijuana (DUID). Arizona’s DUI law prohibits driving while impaired to the slightest degree by any substance — including legal marijuana. Unlike alcohol, there is no legal “limit” for THC in Arizona DUI law. Any detectable impairment is enough for an arrest.

Per se DUID. Arizona previously had a “per se” DUID law that made it illegal to drive with any amount of THC metabolites in your blood, even if you were not impaired. The Arizona Supreme Court partially limited this in Dobson v. McClennen, but marijuana DUID enforcement remains active and prosecutors continue to pursue these cases aggressively.

Open container violations. Marijuana in a vehicle must be in a sealed, child-resistant container — the same container it came in from the dispensary. An open bag, an unsealed container, or a partially used product not properly resealed can result in a citation or arrest, particularly during a traffic stop.

Marijuana on Federal Property

Federal law still classifies marijuana as a Schedule I controlled substance. Possession, use, or distribution on any federally controlled property in Arizona — national parks, federal buildings, tribal lands (unless the tribe has specifically authorized it), and any property owned or leased by the federal government — is a federal offense, regardless of Arizona state law.

Luke Air Force Base, Tonto National Forest, and federal courthouse grounds in downtown Phoenix are all examples of locations where Arizona’s legalization law offers you zero protection.

Marijuana and Persons Under 21

Nothing in Prop 207 changed the law for people under 21. Possession of any amount of marijuana by a person under 21 remains a criminal offense. For minors, possession of marijuana can result in juvenile court proceedings with consequences affecting their record, driving privileges, and educational opportunities.

Providing marijuana to anyone under 21 — including an 18 or 20-year-old — is a criminal offense with enhanced penalties.

Marijuana at Work and in Employer Policies

Arizona employers retain the right to maintain drug-free workplace policies and may discipline or terminate employees who test positive for marijuana, even when use occurred legally on personal time. This is particularly true for safety-sensitive positions.

While this is an employment law issue rather than a criminal one, people sometimes assume that legal use means zero professional consequences. That assumption can cost someone their job.

What About Old Marijuana Convictions?

Prop 207 included an expungement (technically called “expungement of arrest, charge, adjudication, or conviction”) provision for eligible prior marijuana offenses. Arizonans with qualifying convictions for conduct that is now legal — such as possessing less than one ounce — can petition the court to have those records expunged.

This does not happen automatically. You must file a petition. Not all convictions qualify, and the process requires meeting specific criteria and following proper court procedures.

If you or a family member has an old marijuana conviction that may be eligible for expungement under Prop 207, speaking with a criminal defense attorney is the right first step.

What to Do If You’ve Been Arrested for a Marijuana Offense in Arizona

Being arrested for a marijuana-related offense after legalization feels particularly frustrating and confusing. Many people genuinely believed they were operating within the law. That belief, however sincere, does not change the charge — but it does shape how an experienced defense attorney approaches the case.

Whether you are facing a possession charge, a distribution charge, a marijuana DUI, or a combination, the same principles apply:

Do not explain yourself to police at the scene. Politely decline to answer questions beyond identifying yourself and providing your documentation. Anything you say will be used in building the case against you — not in your favor.

Do not assume the charge will go away on its own. Even possession charges in Arizona carry lasting consequences if not handled properly. A felony marijuana conviction still affects employment, housing, and professional licensing just as it did before legalization.

Contact a criminal defense attorney as soon as possible. The earlier an attorney reviews the circumstances of your arrest — the stop, the search, the seizure, the testing — the more options are available for your defense.

Facing a Marijuana Charge in Mesa? Let’s Talk.

The Law Office of Robert P. Jarvis has represented Mesa and East Valley residents facing marijuana charges throughout the evolution of Arizona’s cannabis laws — from prohibition through the Prop 207 era. We understand the nuances of current Arizona law, how Maricopa County prosecutors approach these cases, and how to build the strongest possible defense for your situation.

If you have been arrested or charged with a marijuana-related offense anywhere in the East Valley, call us today for a free, confidential consultation.

[INSERT PHONE NUMBER]

Legalization changed a lot. It did not make criminal defense attorneys unnecessary — it made knowing the exact boundaries of the law more important than ever.

The Law Office of Robert P. Jarvis serves clients in Mesa, Chandler, Gilbert, Tempe, Scottsdale, and throughout Maricopa County. This article is for general informational purposes only and does not constitute legal advice. Arizona marijuana law continues to evolve through legislation and court decisions — contact our office for guidance specific to your situation.