Does OSHA require supervisors to have 10-hour training ?
OSHA requires you have a competent person implementing your safety program. A competent person must have knowledge and authority. One way to document the knowledge requirement is to provide OSHA 10-hour training to your supervisors. So, no you are not REQUIRED to do 10-hour training, but it is an effective way to meet the knowledge requirement. In addition, many general contractors now require all of their subcontractors to have someone 10-hour trained.