Traveling with cannabis can be complicated because the legality of cannabis varies from one location to another, even within the same country. To avoid legal issues and potential complications while traveling with cannabis, here are some general rules and tips to keep in mind:

1. **Know the Laws:** Research and understand the cannabis laws and regulations in your departure and destination locations. These laws can vary widely, from full legalization to strict prohibition.

2. **Stay Informed:** Stay updated on any changes to cannabis laws and regulations in both your departure and destination areas. Laws can change, and new rules may be enacted.

3. **Travel Within Legal Limits:** If cannabis is legal at your departure and destination locations, be sure to follow local possession limits, age restrictions, and other regulations.

4. **Travel Documents:** Carry valid identification, such as a driver's license or passport, with you. If you are a medical cannabis patient, have your medical card or documentation on hand.

5. **Avoid International Borders:** It's typically illegal to carry cannabis across international borders, even if cannabis is legal in both countries. This includes airports, ports, and border crossings.

6. **Leave It Behind:** If you're traveling to an area where cannabis is illegal or the laws are unclear, it's best to leave your cannabis products at home to avoid any legal trouble.

7. **Pack Discreetly:** If you must travel with cannabis, pack it discreetly and securely. Use a smell-proof container to minimize odor, and avoid carrying large quantities.

8. **Check Airline Policies:** If you're flying, check the airline's policies on carrying cannabis. Some airlines have strict rules against cannabis, even if it's legal in the departure and destination locations.

9. **No Smoking on Planes:** Smoking cannabis on an airplane is strictly prohibited and can result in severe consequences, including fines and arrest.

10. **Keep It Sealed:** If you have edibles or other cannabis products, keep them sealed in their original packaging with clear labeling to indicate the THC content.

11. **Don't Drive Under the Influence:** Never drive under the influence of cannabis. Impaired driving is illegal and dangerous.

12. **Transport in a Trunk:** If you're traveling by car with cannabis, keep it in the trunk or another area not accessible to the driver or passengers.

13. **Be Respectful:** Be respectful of local laws and customs. Even in places where cannabis is legal, it may not be socially accepted in all situations.

14. **Medical Cannabis:** If you're a medical cannabis patient, be sure to carry your medical documentation, prescriptions, and any required identification.

15. **Ask Authorities:** If you have any doubts or questions about traveling with cannabis, consider contacting local authorities or legal experts for guidance.

Remember that even within countries where cannabis is legal, specific regulations can vary from state to state or province to province. Always prioritize compliance with local laws and prioritize safety and responsibility when traveling with cannabis.