The OSHA Act covers which of the following?

The Occupational Safety and Health Administration (OSHA) Act was enacted to ensure safe and healthful working conditions by setting and enforcing standards for workplace safety. The correct answer indicates that OSHA covers nongovernmental employers whose activities affect commerce. This is essential because OSHA's authority extends to private sector employers that engage in business activities that impact interstate commerce, which encompasses a wide range of industries and activities.

This broader scope of coverage allows OSHA to regulate workplace safety across various sectors, ensuring that a significant portion of the workforce is protected under its guidelines. The legal grounding of OSHA's reach is primarily derived from the Commerce Clause of the U.S. Constitution, which authorizes the federal government to regulate any activities that have a substantial effect on interstate commerce, thus reinforcing its jurisdiction over a wide array of employers and industries beyond just federal employees or those in specific categories like mining or hazardous manufacturing.