The legalization of recreational cannabis has prompted employers to create a corporate cannabis policy. However, dealing with just cannabis is not useful. A Workplace Substance Management Policy is more effective in facilitating the design of a holistic substance management policy, not just a cannabis policy. The reason is because it really makes no sense to treat cannabis differently than any other medication or impairment causing substance. Complete with video presentations, checklists, and policy statements (in French and English), this workplace substance management guide is the most comprehensive approach for employers to use. Drug and alcohol policies, occupational health and safety concerns and employee accommodation matters can raise a wide range of legal issues. This guide will point the way to better managing cannabis in your workplace.