In order of the nations with the most generous limit down to the four countries that ban any blood alcohol whatsoever, that’s:
0.8 g/l: Ireland, Luxembourg, Malta and the United Kingdom
0.5 g/l: European Union countries not otherwise mentioned — and also the Australian limit.
0.49 g/l: Latvia
0.4 g/l: Lithuania
0.22 g/l: Cyprus
0.2 g/l: Sweden, Poland, Estonia, Finland
0 g/l: Czech Republic, Hungary, Romania, Slovakia
http://www.ausbt.com.au/blood-alcohol-limits-in-europe-safe-to-drive-after-that-dinner