[QUOTE="me"] What do they call zero?[/QUOTE] Zero is zero. It's easily measurable, being zero. There has been a legally enforcible Zero BAC limit for probationary drivers in Victoria (and I suspect many other places) for over 20 years now. [QUOTE] It would be quite possible to still have a level of alcohol in the blood the day after a night out, or even many hours after a social event.[/QUOTE] yes it would. Don't drive if youre affected by alcohol. [QUOTE] There would have to be an arbitary level.[/QUOTE] zero sounds arbitrary. 0.05 sounds arbitrary. 0.08 sounds arbitrary. In fact just about every 'limit' in the road rules is an arbitrary number. [QUOTE] As 0.05 BAC is scientically and medically proven to be a level which does not impair driving/riding ability, what good will a lower or zero policy do?[/QUOTE] LOL funny stuff. Scientifically and medically proven eh !!! Nev.. '08 DL1000K8