it really depends on how much you smoke. They usually don't care too much about weed, and are more interesting in hard drugs, blizzle, meth, stuff like that. There is some THC percentage that is acceptable, its like under 75 or something. As long as your not blazing fat every day you should be alright. This is for minimum wage type jobs, with not a lot of responisbility. If it is for operating equiptment, like driving, or driving a tractor or something, or government work, you will have to be pretty clean. But I don't think jamba juice is too worried about their employees balzing once a week.