hey well ive been on probabtion for about 9 months now...have 3 left....the way my piss tests work is when i used to have to see him every week he would piss test me like 1 every 4 times....then now he does it every 6 weeks.....just when u go to the meeting....when he calls u in he'll prolly just say drug screen....then u go to the bathroom and in my case pee in a cup...but my PO doesnt stand in the room with me thank god.....