1. Employers are prohibited from disciplining an employee or refusing to hire a job applicant as a result of authorized medical marijuana use. 2. Employers cannot discipline or refuse to hire an authorized medical marijuana user because the individual tests positive for marijuana use. 3. An employer can discipline an employee who tests positive for marijuana use, even if the employee is authorized to use medical marijuana. 4. Employers are not required to permit their employees to use or possess marijuana for any purpose during working hours. 5. The impairing effects of marijuana have been shown to last for up to 48 hours after ingestion.