This Law Firm Publication by Holland & Hart LLP discusses Coats v. Dish Network, LLC, in which the Colorado Court of Appeals held that an employer did not violate Colorado's lawful off-duty activity law when it terminated an employee for his off-duty marijuana use. Although the employee was licensed to use marijuana under Colorado's medical marijuana law, the court held that an activity is lawful in Colorado only if it complies with both state and federal law. The court then reasoned that the employer did not violate the off-duty conduct law because marijuana use is illegal under federal law.