Since 2006, California law has required all employers of 50 or more who conduct business in the state to provide at least two hours of interactive training and education regarding sexual harassment to all supervisory employees. That training is required at least once every two years and must be conducted by qualified trainers, defined by law and including attorneys who meet specific criteria. New supervisors and new hires in supervisory positions have to be trained within six months of assuming a supervisory position. The content of that training is specified by law.