Litigation
Topic
Cannabis and hemp litigation
Court cases shaping cannabis and hemp law, from challenges to state licensing programs and hemp product bans to federal preemption disputes, trademark fights and consumer class actions. For lawyers, operators and investors tracking legal risk.
About our litigation coverage
Much of cannabis and hemp law is now being written in courtrooms. Hemp companies have sued over state bans on intoxicating hemp products, applicants have challenged licensing lotteries and residency requirements, and consumers have filed class actions over potency labeling and health claims. Federal cases test the limits of the Controlled Substances Act, interstate commerce protections and tax treatment.
We summarize filings, rulings and appeals in plain language, explain what each decision means for operators in that jurisdiction, and link to the court documents. Coverage includes state and federal courts and administrative appeals of agency decisions.
Litigation coverage is useful well beyond the parties involved. A ruling in one state often shapes how regulators and legislators in other states draft their own rules, and pending cases can signal where enforcement risk is heading.
What you will find
- Challenges to state hemp-derived THC bans and restrictions
- Licensing disputes, including lottery and residency challenges
- Dormant commerce clause and federal preemption cases
- Consumer class actions over labeling, potency and marketing
- Trademark, patent and contract disputes between cannabis businesses
Frequently asked questions
Can a hemp company sue a state over a ban on THC products?
Yes, and many have. Outcomes have varied, with courts split on whether federal hemp law preempts state restrictions. We track these cases and their status.
What is the dormant commerce clause and why does it matter for cannabis?
It is a constitutional doctrine limiting states from discriminating against out-of-state commerce. Courts have used it to strike down residency requirements for cannabis licenses in some states.
Do you cover administrative appeals, not just court cases?
Yes. License denials, suspensions and enforcement actions often go through agency hearings before reaching court. We cover notable ones.
Is this legal advice?
No. Our coverage is general information drawn from public sources, not legal advice. For a specific situation, talk to a lawyer licensed in the relevant jurisdiction. If you spot an error, let us know through the contact page.
The Regulator Brief
Every hemp and THC rule change, every Monday
One email a week covering new laws, agency rules and court rulings across US states and the countries we track.