The OSHA code of Federal Regulations lists numerous types of training that include various exceptions and provisions. It is important to always have a strong general knowledge background of all OSHA requirements. The OSHA training is divided into four major sections which consist of initial, annual, specific increments as well as when changes or new hazards occur. The initial training consists of employees being trained on the hazards of their jobs before they start to work, for example, those with jobs that work with powered industrial truck laws. Annual and specific increment training determines and states specific requirements pertaining to employees who work with respirators and blood bone pathogens. Potential hazards as well as special hazards pertain to frequent retraining if a potential hazard presents itself, as well frequent training as a result of a change in processes or job duties and adding new chemicals or equipment.