Ferris
in days gone by it was a No No.
In your time in the UAE the licence of a local was suspended by me, you might recall the case. In that instance it was initially type 2 which could have been and should have been controlled by suitable diet, etc but the newly instigated GCAA Doc put him on insulin straight away which wrecked the chaps chance of ever getting his licence back.
Since then the procedures have been updated and UAE CIVIL AVIATION ADVISORY PUBLICATION CAAP 19 AEROMEDICAL applies. (internet search required)
The current procedure re Type 2 is in line with what Brian48Nav says.
