Blood-Borne Pathogens, 1910.1030 Blood-borne pathogens are pathogenic microorganisms in human blood that can cause disease in humans. HBV and HIV are examples of blood-borne pathogens but are not by any means the only ones. Workers in the health-care industry are those most at risk for exposure to blood-borne pathogens, and OSHA regulations require employers to take steps to prevent exposure, including a written exposure control plan that informs employees of preventive steps, post-exposure evaluation and follow-up, recordkeeping, and incident evaluation procedures.Hazard Communication Standard (HCS), 1910.1200 The HCS requires employers to provide employees with information about physical and health hazards related to the use of any chemicals in the workplace. Employers must develop and maintain an ongoing written HCS plan that is to be updated as changes occur in the materials used in the workplace. The material safety data sheets (MSDSs) provided by chemical manufacturers provide sufficient information for communicating to and training employees.