The second “marijuana moment” occurred in the US, where the states of Washington and Colorado have entered the final stages of fully legalizing marijuana usage, following popular referenda last November. Both states have just concluded the drafting and publication of the rules and regulations that will translate their referendum results into law: how to forbid consumption by minors; how to punish consumers driving under the influence; what kind of taxes and tax rates are most appropriate; and how non-residents will be treated, among other complicated and controversial issues.