Cannabis testing regulations: A state-by-state guide Leafly’s comprehensive guide to marijuana testing regulations in all 50 states The post Cannabis testing regulations: A state-by-state guide appeared… By hempcbdtimes , in Alaska Arizona California cannabis testing Colorado connecticut delaware hawaii Health Illinois Industry Lab testing Maine marijuana testing maryland massachusetts Michigan minnesota Montana Nevada New Hampshire new mexico New York Oregon rhode island vermont Washington Washington DC , at February 24, 2020