Recreation Use of Cannabis by Adults is Legal Massachusetts allows purchase and use of recreational cannabis/marijuana by people over age 21. Purchasers do not need to be a Massachusetts resident; they must have a government-issued ID. You may have up to one ounce of flower and up to five grams of any concentrate outside of your home. Using cannabis in public is prohibited. See more on the laws for more details and links for Massachusetts marijuana/cannabis laws. "Quick Hits" - FAQ about Cannabis in Mass. Q: Who may buy & use cannabis in Mass.?A: Anyone age 21 and older. You must show a valid gov't-issued ID to enter a dispensary. You do not need to be a resident of Massachusetts. Q: How can I pay?A: You may use only cash or a debit card, not a credit card. Some stores may have an ATM on the property. Q: How can I prepare to shop ahead?A: Most dispensaries have a website. There, you can find out location, hours, and you can preview products. Plenty of dispensaries in Massachusetts also...
