Which agency is responsible for enforcing OSHA regulations?

The Occupational Safety and Health Administration (OSHA) is the agency responsible for enforcing federal regulations related to workplace safety and health. OSHA's primary mission is to ensure that workers have a safe and healthy working environment by establishing standards, conducting inspections, and enforcing compliance with these regulations. This includes setting limits on hazardous substances, providing training for safe practices, and requiring employers to maintain a safe workplace.

In the context of this question, OSHA stands out as the only agency dedicated specifically to workplace safety enforcement, distinguishing it from the other organizations mentioned. The Environmental Protection Agency focuses more on environmental protection and pollution control, while the National Fire Protection Association develops codes and standards for fire safety but does not enforce regulations. Similarly, the Federal Emergency Management Agency is involved in disaster response and preparedness rather than direct enforcement of workplace safety standards. This clarity in roles helps to understand why OSHA is the correct answer regarding enforcement of regulations related to worker safety.