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.
The usage of cannabis in Alaska has been protected by their constitution with a law concerning the right to privacy of its residents. The legality of possession, cultivation and consumption of small amounts of marijuana has been ruled by the supreme court back in 1975 as legal.
Today the state still has some of the most liberal laws regarding marijuana use, and even their medical system legalized marijuana use for qualified patients on November 1998. One of the problems with medical cannabis in the state of Alaska is that there are no dispensaries available to residents, so to work around this problem, there are various groups that help patients connect with places to make the purchase.
In November 2014, Alaska officially legalized the consumption, possession, manufacture and sale of marijuana for recreational use at the state level. Next year in November their marijuana control board also approved the consumption of cannabis products on site at retail stores, which means that they can now legally have cannabis cafes similar to those that you can find in Amsterdam.
Although you can get a DUI for driving while high, the drivers have a right to refuse a test for drugs unless they are involved in a serious accident. We strongly advise that you do not drive under intoxication of any drug, not only to avoid fines, but to be safe on the road.