Why federal marijuana rescheduling could complicate state rules

Marijuana scheduling snapshot: A rapid 50-state and D.C. survey.

Journal of the American Pharmacists Association : JAPhA • • Highly Relevant
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AI Summary

A rapid legal survey examined how marijuana is classified under controlled-substance laws across all 50 states and Washington, D.C. The review found that 33 states (65%) list marijuana as a schedule I controlled substance, matching current federal law. Nine states (18%) do not schedule marijuana, while another nine (18%) use a different schedule or classification system; two states (4%) have already placed it in schedule III.

The authors conclude that a federal move from schedule I to schedule III could initially make the legal landscape more complicated rather than simpler. State law could remain stricter than federal law, federal law could remain stricter, or some states could automatically follow the federal change. The findings are especially relevant to pharmacists, who would need to follow whichever rules are stricter in their state. The abstract reports a legal survey rather than clinical evidence about cannabis effects or health outcomes.

💡 Key Findings

1
Most states—33 (65%)—classify marijuana as schedule I, the most restrictive classification and the one currently used under federal law.
High
80%
2
Eighteen percent of states do not schedule marijuana, while another 18% use a different schedule or classification system; two states have already adopted schedule III.
High
80%
3
A federal move to schedule III could create greater regulatory complexity, with state and federal laws potentially conflicting in several ways.
High
80%
4
Pharmacists will need to monitor state-specific requirements closely, particularly where state law becomes stricter than federal law.
Good
70%

📄 Original Abstract

Marijuana is a schedule I controlled substance under federal law, but the Drug Enforcement Administration has published a proposed rule to reschedule it to schedule III at the federal level. This may create an even more complex regulatory landscape for the drug, with potentially ongoing conflicts between federal and state law. To evaluate the current scheduling of marijuana in the United States. In January 2026, two researchers independently conducted a 50-state survey to identify the schedule of marijuana in all 50 states and D.C. Westlaw, a legal database, was used to conduct searches in each state using the following search terms: "marijuana, "controlled substance," "schedule," "cannabis," and "marihuana." Most states listed marijuana as a schedule I controlled substance (n=33; 65%), which is the most restrictive schedule and consistent with current federal law. A total of nine (18%) states did not schedule marijuana. A total of nine (18%) states included marijuana in another schedule or classification system, with two (4%) states having already adopted schedule III. This review of state laws highlights implications of potentially rescheduling marijuana to schedule III, including three post-change scenarios: (1) state law is stricter than federal, (2) federal law remains stricter, and (3) automatic change in schedule when state law defers to federal. This will likely create more regulatory complexity immediately post-change, and pharmacists must be mindful of their state's laws in practice to ensure compliance, particularly for states that become the stricter law on the topic.

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