Which group is NOT covered by OSHA regulations?

Self-employed individuals are not covered by OSHA regulations because OSHA is designed to protect workers who are employed by others, ensuring their safety and health in the workplace. Since self-employed individuals do not operate under an employer-employee relationship, OSHA regulations do not apply to them directly.

Meanwhile, most private sector employees, including those working for companies in diverse industries, fall under OSHA's purview to ensure their working conditions meet safety standards. Federal employees and those working for the U.S. Postal Service are also covered, though under separate regulations that provide similar protections. This distinction emphasizes that while OSHA's mission encompasses many workers, it draws a clear line at self-employment, which falls outside its regulatory framework.