Many employers are treating cannabis the same way as they treat alcohol. Safety in the workplace is an obligation of all work site parties, including employers, supervisors, and workers. Impairment at work (from cannabis, alcohol, medications, or a medical condition) can create an unsafe work situation. If you are impaired by cannabis (either recreational or medicinal) and your impairment may impact the health and safety of you or someone else at work, then you have a legal obligation to ensure it does not. You should review your workplace policies. Many employers have policies about drugs (including cannabis) and alcohol in the workplace, health and safety, and consequences for disobeying those policies. Last Reviewed: June 2019