For most individuals working in Occupational Health and Safety, October 17, 2018 will not be easy to forget. However, the truth is, substance use in the workplace is not new.  Prior to cannabis legalization, individuals did use cannabis in a recreational fashion before and at work. The Canadian Cannabis Survey, both 2017 and 2018, surveyed Canadians prior to legalization and both surveys confirmed use of non-medical cannabis before or at work by Canadians.