Employee refresher training is essential for enhancing and strengthening employees' knowledge and skills. It helps individuals stay sharp in their roles, keep up with the latest developments in their field, and contribute effectively to the organization's success and careers. Current employees must receive eight hours of refresher training annually. No training is required if employees are not exposed to a particular hazard. For example, if workers have no risk of asbestos exposure, then there's no need for Asbestos Awareness or related training.