In a hazard communication program, what must be fully evaluated for possible physical or health hazards at the work site?

The correct answer focuses on the necessity of evaluating chemicals within a hazard communication program. This evaluation is essential because many workplace hazards stem from exposure to various chemicals that can pose physical or health risks to employees. The Occupational Safety and Health Administration (OSHA) requires that employers assess all chemicals used in the workplace to ensure that employees are informed of any potential hazards associated with those substances. This encompasses the properties of these chemicals, the risks they present, and the necessary safety measures that must be implemented.

When conducting a hazard assessment, identifying how chemicals interact with each other and the environment is crucial, as well as understanding their effects on human health. Proper labeling, safety data sheets, and employee training about the risks associated with chemicals are critical components of a comprehensive hazard communication program. Therefore, chemicals are a primary focus because they can be a significant source of risk in many work environments.