Bringing any type of drug into or out of a country is illegal in most places, so don’t bring them with you when traveling (or at least make sure it’s legal first).
Driving under influence of drugs is also illegal in most places, and for good reason. Do not drive under influence to avoid any problems.
Many places do not allow the use of drugs in public, even when they are legalized for recreational use. Make sure it is legal before lighting a joint in a public place.
Arizona is one of the states that still have to legalize cannabis completely. As of 2010 the only legal use of marijuana products is for medical purposes. One of their latest attempts was on November 2016, when they also tried passing the Arizona marijuana legalization but failed.
For patients with a marijuana medical card though, Arizona is full of dispensaries where you can legally buy your medicine. One great thing is that the dispensaries also allow the purchase of cannabis products by those who have a medical marijuana card that was issued in another state. Although Arizona will only issue medical cards to its residents.
Consuming cannabis products in public is still not legal even for medical use, so stay safe and use them at home or somewhere away from public view with a discreet vaporizer.
If you are a resident of Arizona, make sure you voice your support for recreational marijuana, so that the next time it is in the talks among politicians, with enough support from their voters it could finally pass into law.