Then when do you get CDT checked? as per FR email, after an incident, maybe during your yearly medical or because a 19y/o GR2 report you.
Straight from the NPA document:
Only indicated if the AME at the time of the medical check, observed signs or medical problems which may be related/or induced by alcohol abuse (e.g. person with family history of addiction, cases of cardiac arrhythmia, insomnia, chronic headache , depression or anxiety, liver disease and cases of uncontrolled hypertension or diabetes).
Note 1: For all the applicants applying for renewal over 60 years, Alcohol Screening should be part of the psychological assessment.
Note 2: Screening should be standardized as much as possible within the GCAA Recognized clinics by using the Laboratory tests.