The swedish rules
The swedish rules are as follows:
24 hrs before duty one must drink with care, i.e. a pint or so...
8 hrs before duty you are not allowed to drink anything containing alcohol and one must be able to drive a car according to swedish regulations, wich is 0,2 promille.
When checking in for duty the limit is 0,0.
These are the rules we are supposed to follow when we fly on our swedish licence, wherever we fly in the world.