Safety is defined as the state of being protected from harm or injury. It involves controlling recognized hazards to achieve an acceptable level of risk. Industrial safety specifically refers to policies and protections that ensure worker safety in plants and factories. Occupational health and safety involves conditions and factors that could affect the health and safety of employees, visitors, or others in the workplace. Organizations implement occupational health and safety management systems including developing policies to manage risks. A hazard is any situation or substance that poses a risk of harm, and a risk assessment evaluates risks from hazards and existing controls to determine if the risk is acceptable.