Is Marijuana a Schedule I Drug? Rescheduling to Schedule III

Yes. Marijuana is still a Schedule 1 controlled substance under federal law, the most restrictive category the Controlled Substances Act contains. It has held that classification since the CSA was enacted in 1970, and it holds it today even though roughly 40 states run medical cannabis programs and about 24 allow adult recreational use. A federal process to move marijuana to Schedule III is underway but not finished, and in December 2025 an executive order directed the Attorney General to complete that rulemaking as quickly as federal law allows.¹

Why Marijuana Sits in Schedule I

The Controlled Substances Act sorts drugs into five schedules based on abuse potential, whether they have an accepted medical use, and how safely they can be used under a doctor’s care.² Schedule I is the top tier. A substance lands there when federal regulators find it has a high potential for abuse, no currently accepted medical use in the United States, and no accepted safety profile even with medical supervision.³

Marijuana has been listed on Schedule I since the CSA first took effect, appearing in the statute under the older federal spelling “marihuana.”³ That placement makes it illegal for any purpose under federal law outside narrow, federally approved research. It cannot be lawfully prescribed, dispensed, or possessed.

What Schedule I Status Actually Does

The label carries weight far beyond criminal penalties. It shapes research access, tax treatment, and banking, and it colors how every federal agency deals with the cannabis industry.

Research

Studying a Schedule I substance requires a special DEA registration with stricter security and recordkeeping than lower schedules demand. The federal government itself has acknowledged that the current classification has held back research into marijuana’s medical uses. The December 2025 executive order stated plainly that inadequate research has left patients and doctors without proper guidance on prescribing and use.¹

Taxes

Section 280E of the Internal Revenue Code bars any business that traffics in Schedule I or Schedule II substances from deducting ordinary business expenses.⁴ A state-legal dispensary cannot write off rent, wages, utilities, or advertising the way every other retailer can. Federal income tax gets paid on something close to gross revenue instead of actual profit, and the effective rate ends up dramatically higher than comparable businesses face.

Banking

Federally regulated banks face money-laundering exposure if they knowingly handle proceeds from Schedule I activity. Most major banks and credit unions refuse cannabis accounts, forcing the industry into cash-heavy operations that create security risks and complicate basic financial management. Bills to fix this directly have been introduced repeatedly in Congress but none has become law.

Where Rescheduling Stands Now

Changing a drug’s schedule is an administrative rulemaking, not an act of Congress. Before the DEA can propose any change, federal law requires it to request a scientific and medical evaluation from the Department of Health and Human Services, carried out through the FDA. HHS’s scientific and medical conclusions bind the DEA, though the DEA makes the final legal call.⁵

HHS completed its review and recommended moving marijuana to Schedule III, concluding it no longer meets the Schedule I criteria. In May 2024 the Department of Justice published a proposed rule to carry out that recommendation. The proposal drew nearly 43,000 public comments.¹

An administrative law hearing was scheduled to begin on January 21, 2025, but the DEA postponed it after one of the parties filed an appeal.⁶ In December 2025, President Trump signed the executive order directing the Attorney General to “take all necessary steps to complete the rulemaking process related to rescheduling marijuana to Schedule III of the CSA in the most expeditious manner.”¹ As of early 2026, marijuana remains Schedule I and the hearing has not yet taken place.

What a Move to Schedule III Would Change

Schedule III is defined by a lower abuse potential than Schedules I and II, a currently accepted medical use, and the potential for moderate or low physical dependence.² Ketamine, anabolic steroids, and certain codeine products sit at that level.⁷

Three practical shifts would follow. Section 280E only reaches Schedule I and II businesses, so state-legal operators would immediately be able to deduct ordinary expenses like every other retailer.⁴ Research registration and security requirements would ease. And federal trafficking penalties, which currently reach a mandatory minimum of 10 years and a maximum of life for the largest quantities, would fall to a Schedule III first-offense ceiling of 10 years.⁸

Simple possession penalties would not move. Under 21 U.S.C. § 844, a first offense of simple possession of any controlled substance carries up to one year in prison and a minimum $1,000 fine regardless of schedule, rising to two years and $2,500 for a second offense and three years and $5,000 for a third.⁹

What a Move to Schedule III Would Not Change

Rescheduling is not legalization, and this is where most readers get the story wrong.

A Schedule III substance can only be lawfully used when it has been approved by the FDA and dispensed under a valid prescription.¹⁰ The FDA has approved only one cannabis-derived drug (Epidiolex) and three synthetic marijuana-related drugs. The products sold in state dispensaries are not FDA-approved and are not available by lawful federal prescription, so manufacturing, distributing, and possessing them would remain subject to criminal penalties under the CSA, and interstate commerce would still require FDA approval.¹¹

The federal firearms bar would also stay in place. Federal law prohibits any “unlawful user of or addicted to any controlled substance” from possessing firearms or ammunition, and that prohibition covers every schedule.¹² Anyone using marijuana without a valid federal prescription for an FDA-approved product would still be an unlawful user of a controlled substance and federally barred from buying or possessing a gun.¹¹

The Congressional Research Service has concluded that “most of the consequences for marijuana use or for marijuana-related convictions would remain the same if it is moved to Schedule III.”¹¹ Federal employment drug testing, immigration exposure, and many other collateral consequences flow from marijuana being a controlled substance at all, not from where on the schedule it sits.

The Federal-State Gap Either Way

The Supremacy Clause makes federal law prevail over conflicting state law.¹³ Every state-legal cannabis operation therefore violates federal law, however carefully it follows state rules. About 40 states and the District of Columbia have medical programs and roughly 24 allow adult recreational use, and the gap between federal and state law has never been wider. The federal government has generally declined to prosecute people and businesses that comply with state frameworks, but it has never surrendered the authority to do so.

For individuals, the split can surface in federal employment background checks, child custody disputes in federal court, or housing in federally subsidized properties. Until Congress either removes marijuana from the schedules entirely or passes protections for state-legal activity, that conflict will persist wherever marijuana sits on the scheduling ladder.

1
The White House. Increasing Medical Marijuana and Cannabidiol Research
2
United States Drug Enforcement Administration. The Controlled Substances Act
3
Office of the Law Revision Counsel. 21 USC 812 – Schedules of Controlled Substances
4
Office of the Law Revision Counsel. 26 USC 280E – Expenditures in Connection With the Illegal Sale of Drugs
5
Office of the Law Revision Counsel. 21 USC 811 – Authority and Criteria for Classification of Substances
6
United States Drug Enforcement Administration. Hearing on the Proposed Rescheduling of Marijuana Postponed
7
eCFR. 21 CFR 1308.13 – Schedule III
8
Office of the Law Revision Counsel. 21 USC 841 – Prohibited Acts A
9
Office of the Law Revision Counsel. 21 USC 844 – Penalties for Simple Possession
10
eCFR. 21 CFR Part 1306 – Controlled Substances Listed in Schedules III, IV, and V
11
Congress.gov. Rescheduling Marijuana: Implications for Criminal and Collateral Consequences
12
Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
13
Cornell Law Institute. Supremacy Clause