Which organization provides guidelines on hazardous materials and safety standards?

Answer: C — Occupational Safety and Health Administration (OSHA)

The Occupational Safety and Health Administration (OSHA) is the organization primarily responsible for establishing safety standards that govern the handling and management of hazardous materials in the workplace. OSHA develops regulations to ensure safe working conditions and requires employers to adhere to specific guidelines regarding hazard communication, personal protective equipment, and emergency response plans. These regulations are crucial in safeguarding employees from potential hazards associated with chemicals and other dangerous materials. While other organizations like the Environmental Protection Agency (EPA) focus on environmental regulations and policies, and the National Institute for Occupational Safety and Health (NIOSH) conducts research and provides recommendations, none specifically set workplace safety standards in the same way as OSHA does. The Federal Emergency Management Agency (FEMA) deals more with emergency management and disaster response rather than direct workplace safety concerning hazardous materials. Thus, OSHA stands out for its direct role in implementing and enforcing safety standards related to hazardous materials in occupational settings.