Licensed Q Arabica Graders must calibrate with each other every three years in order to test their abilities to accurately evaluate coffee quality based on their gained experience, knowledge, and standards/protocols learned in Q training. It is mandatory for all Q Graders to participate in calibration if they wish to remain active as a Q Grader in good standing. The calibration consists of three cupping flights, (or tables- 6 samples each) of coffees with distinct attributes. All Q Graders must be in calibration and pass two of the three flights in order to renew their licenses and continue as Licensed Q Graders. Upon passing, the Q Grader license will remain valid for another 36 months, starting on the day of expiration.