U.S. Cannabis Laws & Official Resources
A practical starting point for understanding federal, state, local, tribal, travel, workplace, hemp, and CBD rules—without pretending one answer fits every person or place.
This page is educational information, not legal advice. Cannabis rules change quickly and can differ by state, city, county, tribal land, federal property, workplace, housing provider, and product type. Check the current rule that applies to you before possessing, purchasing, growing, traveling with, or using any cannabis product.
Start With the Two-Layer Rule
Federal law
Federal cannabis rules do not automatically change when a state legalizes medical or adult use. Federal scheduling and enforcement policy are evolving, and different categories of products may be treated differently.
State and local law
States set their own rules for medical programs, adult use, possession limits, home growing, retail sales, licensing, public consumption, and penalties. Local governments may add restrictions.
Common Questions That Need Separate Answers
Medical cannabis
Qualifying conditions, registration, possession limits, caregiver rules, reciprocity, and permitted products vary. Use your state health department or cannabis regulator as the final source.
Adult-use cannabis
Legal adult use does not mean use is allowed everywhere. Age limits, purchase and possession limits, public-use bans, landlord rules, and employer policies may still apply.
Hemp and CBD
Hemp production falls under federal and state frameworks, but finished CBD foods, supplements, drugs, cosmetics, and animal products can also fall under FDA and local rules.
Home growing
Rules may depend on age, medical status, plant count, location, security, visibility, landlord permission, and local zoning. Never assume legal possession also permits cultivation.
Travel
Crossing state lines, entering federal property, flying, and driving create separate legal issues. TSA officers refer suspected violations to law enforcement, and destination laws still matter.
Driving and work
Do not drive impaired. Employers may maintain drug-free-workplace policies, and state protections differ. A state cannabis program does not guarantee job protection.
How to Check the Rule Where You Live
- Identify the exact product and activity: medical marijuana, adult-use marijuana, hemp, CBD, possession, purchasing, growing, driving, travel, or employment.
- Find your official state cannabis regulator, health department, agriculture department, or legislature.
- Check your city or county rules, especially for public use, growing, zoning, and retail access.
- Check whether tribal land, federal property, subsidized housing, a workplace policy, or interstate travel changes the answer.
- Look for the page’s update date. If the information is old or unclear, contact the regulator or a licensed attorney in your state.
Official and Regulatory Resources
- DEA Drug Scheduling
- DEA Marijuana Rescheduling Actions
- DOJ April 2026 Medical-Marijuana Scheduling Announcement
- CDC State Medical Cannabis Laws
- NCSL State Cannabis Legislation Database
- USDA Hemp Laws and Regulations
- FDA Cannabis and CBD Regulation
- Cannabis Regulators Association
Need more than general information?
For a personal legal question, contact a licensed attorney in your state. For health questions, speak with a qualified healthcare professional. You can also review our Medical & Legal Disclaimer and Trusted Resources.