Massachusetts’ third recreational marijuana shop could open within days.

The Cannabis Control Commission on Tuesday granted a final license to Alternative Therapies Group, Inc., authorizing them to begin recreational sales as early as Saturday. The facility will undergo one final inspection before being allowed to open.

ATG boasts that it was the first dispensary in Massachusetts to begin serving medical marijuana patients on June 24, 2015.

The dispensary is located at 50 Grove St. in Salem.