Quote:
For pilots the limit is 0.02
With some trepidation ... where did you get this number from ?
CASR Part 99 says the permitted level is -
(b) for alcohol — a level of alcohol of less than 0.02 grams of alcohol in 210 litres of breath.
Why 0.02? Possibly like drivng alcolol tests. A small amount can be present from medications etc and rather than get into that debate it's a practical solution to let readings of 0.02 or less go through.