Workplace substance abuse remains a major challenge for workplaces. Although sound in principle, the traditional zero tolerance policy is ill-suited to the legal complexities of the modern world. This is especially true in states that have legalized marijuana. You can still take a clear and firm line on employee drug and alcohol abuse for the purpose of health and safety. But the policy also has to exhibit finesse and sensitivity to legal subtleties. One of the best ways to create an enforceable policy is to base it not on the legality of substance abuse but the undisputable fact that it renders employees unfit for duty to the detriment of safety. Here’s a Model Policy you can adapt.