Answer:
When designing cross-laminated timber (CLT) panels, the calculated moment capacities in the major strength direction (β = 0°) should be multiplied by 0.85 for conservatism according to the American National Standard Institute ANSI/APA PRG 320.
This value is known as the conservatism factor, Ccon in the Timber Design add-on and can be adjusted under the Strength Configuration for NDS.