Possession of cannabis is a federal crime in the United States, even in states that legalized it. Marijuana sits on Schedule I of the Controlled Substances Act, and simple possession is a misdemeanor under 21 U.S.C. § 844. No state law can override that.

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What does federal law say about cannabis possession?

The Controlled Substances Act of 1970 places marijuana in Schedule I. That category means the federal government treats the drug as having no accepted medical use and a high potential for abuse. Federal agencies apply that rule in all 50 states, plus DC and US territories.

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State medical and adult-use programs run under state law. They do not change the federal schedule. A person can follow state law and break federal law at the same moment.

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Federal penalties for simple possession

Federal sentencing for simple possession depends on prior drug convictions. The baseline charge is a misdemeanor. Repeat offenses push the maximum upward.

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Possession with intent to distribute is a different and heavier charge. So is cultivation at scale or sales across state lines. Those fall under 21 U.S.C. § 841 and carry felony exposure.

Does state legalization override federal cannabis possession laws?

No. The Supremacy Clause of the US Constitution makes federal law supreme when the two conflict. A state can legalize cannabis for its own courts and police, but federal agents still enforce the Controlled Substances Act.

In practice, federal prosecutors bring few simple possession cases. Enforcement focuses on trafficking, interstate shipping, and large grows. That pattern comes from budget limits and department policy, not from a change in the statute.

What is the Rohrabacher-Farr amendment?

Congress first passed the Rohrabacher-Farr amendment in 2014. Now often called the Blumenauer amendment, it blocks the Justice Department from spending money to stop states from carrying out medical cannabis laws. It covers medical programs only. It does not protect adult-use sales or possession.

The amendment must be renewed each budget cycle. It has stayed in spending bills, but a lapse would remove the protection.

What happened to the Cole Memo?

The Cole Memo was a 2013 Justice Department guidance that told prosecutors to leave state-legal cannabis alone in most cases. Attorney General Jeff Sessions rescinded it in January 2018. Federal prosecutors can now use their own judgment in legal states.

Where federal cannabis possession charges happen

Federal jurisdiction applies on federal property, and that is where many simple possession arrests start. Examples:

A joint in a glovebox at Yosemite is a federal case even if you bought it in California. TSA does not search for cannabis, but it will hand a find to local or federal police.

Presidential pardons for federal cannabis possession

President Biden issued a pardon in October 2022 for federal simple possession offenses. He expanded it in December 2023. The proclamations cover US citizens and lawful permanent residents convicted of simple possession under federal law or DC law.

What the pardons cover

What they do not cover

A pardon is not an expungement. The record stays, though the pardon removes some collateral effects. Courts and agencies handle each case on its own.

Federal legalization bills and their status

Several bills aim to end federal cannabis possession charges. None has become law.

Until one of these passes, federal possession stays a crime.

Hemp, delta-8 THC, and federal law

The 2018 Farm Bill legalized hemp, defined as cannabis with 0.3% or less delta-9 THC on a dry weight basis. Hemp is no longer a Schedule I drug. That change created a market for CBD and for hemp-derived cannabinoids.

Delta-8 THC sits in a gray zone. It can come from hemp, which some sellers treat as legal. The DEA has said delta-8 THC made through chemical synthesis remains a controlled substance. Federal courts have split on the issue, so state law and product source matter.

Buying cannabis online and federal possession rules

Shipping cannabis across state lines breaks federal law. The Controlled Substances Act bars interstate transport of Schedule I drugs, and the US Postal Service treats cannabis as non-mailable. Private carriers have their own bans.

That rule applies even when both states allow cannabis. A purchase from a licensed seller in one legal state does not make the parcel legal in another. Online orders that stay inside one state's regulated market are a different case.

If you buy cannabis online, check state rules first. Residency limits, possession caps, and delivery laws vary. Track what crosses a state line, because that is the point where federal law takes over.

FAQ: federal cannabis possession laws

Is cannabis legal under federal law?

No. Cannabis remains a Schedule I controlled substance. Possession is a federal misdemeanor for a first offense.

Can the DEA arrest you in a state where cannabis is legal?

Yes. Federal agents can enforce the Controlled Substances Act in any state. Simple possession cases are rare, but the legal power exists.

Does a state medical card protect you from federal charges?

No. A state card is not a federal defense. The Rohrabacher-Farr amendment limits DOJ spending on medical program interference, but it does not legalize medical cannabis.

Can you possess cannabis on federal land?

No. National parks, federal buildings, and military bases follow federal law. A state-issued card or legal purchase does not apply there.

Did the Biden pardons legalize cannabis?

No. They forgave certain past federal possession convictions. They did not change the schedule or remove penalties for future possession.