Although there is no overarching legal requirement or principle that workers must disclose the use of medical cannabis to their employer, it remains unclear whether workers have a duty to disclose such information under the Occupational Health and Safety Act (OSHA). Requirements likely will be determined by the type of medical marijuana being consumed as some do not produce the psychoactive effects that THC does. Employers possess several obligations, including keeping employees safe and to ensure that they are not discriminating against those with disabilities.
