Which organization is known for setting safety regulations relevant to crew operations?

The Occupational Safety and Health Administration (OSHA) is recognized for setting and enforcing safety regulations that are applicable to a wide range of work environments, including those relevant to crew operations. OSHA's primary role is to ensure safe and healthy working conditions by establishing standards and providing training, outreach, education, and assistance. The regulations set by OSHA cover various aspects of workplace safety, including hazard communication, fall protection, and personal protective equipment, which are critical for the safety of crew members in various settings.

In contrast, the other organizations listed have specific mandates that do not primarily focus on crew safety in the same way. For example, the Federal Aviation Administration (FAA) is responsible for regulating civil aviation safety and may address aspects of crew operations in aviation but does not cover the broader safety landscape that OSHA does. The Environmental Protection Agency (EPA) focuses on environmental protection and regulatory measures related to environmental health rather than workplace safety directly. The National Fire Protection Association (NFPA) develops codes and standards related to fire prevention and safety, which, while important, do not encompass the full scope of health and safety regulations that apply to crew operations in various industries.