Which department regulates the military and civilian workers for the defense sector?

The Department of Defense (DoD) is the appropriate entity that regulates both military and civilian workers within the defense sector. This oversight ensures that the various branches of the Armed Forces, as well as civilian personnel who support defense operations, adhere to safety standards, employment laws, and operational policies. The DoD's comprehensive approach to regulation encompasses a wide range of areas, including labor relations, workplace safety, and health regulations, making it essential for maintaining effective and safe operations within the defense sector.

In contrast, other organizations such as FRA (Federal Railroad Administration) focus on transportation safety in the railway sector, OSHA (Occupational Safety and Health Administration) is involved primarily with workplace safety regulations across various industries, and NIOSH (National Institute for Occupational Safety and Health) conducts research and provides recommendations for the prevention of work-related injuries and illnesses. While each of these entities plays a critical role in their respective areas, none specifically regulate the military and civilian workforce within the defense sector like the DoD does.