Quote Originally Posted by TheReleafCenter
How do I know what my nanogram level is before I drive? I understand that more than two drinks an hour and I'll be intoxicated and can make a judgment based on that.
Well, if you want to know your nanogram level, the only method I know of is a blood test. (Anyone feel free to correct me, I have no idea if their are other methods.) To avoid the inconvenience and expense of constant blood tests, I think you should choose a rule of thumb, similar to your "two drinks an hour" rule. Your rule and mine will likely be different: I can get pretty lit after two drinks. Like with booze, choosing to drive high is going to be a judgement call we each make slightly differently.