As intrepid readers of r.a.s. already know, ClearNav CNvXC has been approved by the IGC for "all flights".
However, in order to utilize this capability, your CNv ADC (the "black box") must be briefly returned to CNi or one of our agents for calibration of the barograph and electronic sealing. This service is available immediately, please see here
http://www.clearnav.net/main/cn-igc-approval.html
All new production CNv will be delivered calibrated & sealed (XC license required for secure flight recorder).
Please join our forum at
http://clearnav.net/simplemachinesforum/ for discussion of all things ClearNav.
Best regards,
Evan Ludeman for CNi