Cannabis rules change from one country, state and even city to the next. Something that is legal where you live can be a serious offence a short drive away. This guide to cannabis laws, safe storage and responsible use gives you a simple checklist to stay legal and keep everyone safe.
Table of Contents
Key takeaways
- Check your local law on legal age, possession limits and where you can buy.
- Never carry cannabis across borders or state lines.
- Store products locked away from children and pets, and never drive after use.
Know your local cannabis laws
- Legal age. Where adult use is legal, the minimum age is commonly 21.
- Possession limits. Rules often cap how much you can carry or keep at home.
- Where to buy. Many places only allow purchases from licensed retailers.
- Where to use. Public places, workplaces, rental homes and vehicles are often restricted.
Laws change. Check your state or national government website for the current rules rather than relying on word of mouth.
Travel and delivery
In the United States, cannabis remains illegal under federal law, even in states that have legalized it. That means carrying it across state lines is prohibited, including between two legal states, and it also applies to airports and the mail. Many other countries ban importing or exporting cannabis too. Before ordering online, make sure the seller is licensed to deliver in your area and that you understand the rules where you live.
How to store cannabis safely
- Lock it up. Use a lockable box or cabinet out of reach of children, teens and pets.
- Keep original packaging. Child-resistant, labeled containers help prevent mix-ups.
- Keep it cool and dark. Heat, light and air reduce quality and can melt concentrates and damage cartridges.
- Store vape carts upright and away from hot cars.
- Separate it from food. Never store cannabis products where they could be mistaken for snacks.
Responsible use checklist
- Never drive or operate machinery after using cannabis.
- Start with a very small amount, particularly with concentrates.
- Do not mix with alcohol or other drugs.
- Do not share products with anyone under the legal age.
- Avoid use if you are pregnant or breastfeeding, and speak to a doctor if you have a health condition or take medication.
If you or someone else needs help
If you are worried about your use, or someone has taken too much and feels very unwell, contact local emergency services or your health provider. Confidential support lines are available in most areas.
Frequently asked questions
Can I travel with cannabis between states or countries?
Generally no. In the United States, cannabis remains illegal under federal law, so carrying it across state lines is prohibited even between states where it is legal. Many countries also ban importing it. Always check the rules before you travel.
How should I store cannabis products at home?
Keep them in their original labeled packaging, locked away and out of reach of children and pets, in a cool, dark place away from heat and sunlight.
Can I drive after using cannabis?
No. Cannabis impairs reaction time and judgment. Do not drive or operate machinery after use, and wait until the effects have fully worn off.
Keep learning
- Start low, go slow: cannabis potency and dosing guide
- Vape cartridge safety: how to check before you buy
- Cannabis concentrates explained
This article is general information for adults 21 and over. It is not legal or medical advice. Laws change, so always check your current local rules.

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