If you’re visiting from another state, you must be 21 years or older and present a valid government-issued ID to purchase cannabis or cannabis-based products from an adult-use Marijuana Establishment in Massachusetts.
However, you must enjoy your purchase in Massachusetts, since it’s against the law to transport marijuana across state lines—whether it’s by car, plane, train, boat, or any other mode of transportation. It’s also illegal to mail any type of cannabis-based product, including edibles, even if the final destination is a state, territory, or country that has legalized marijuana.