What agency is responsible for maintaining a safe work environment under OSHA?

The Department of Labor is the correct agency responsible for maintaining a safe work environment under OSHA (Occupational Safety and Health Administration). OSHA is a part of the Department of Labor and is specifically tasked with ensuring safe and healthy working conditions for employees across various industries by setting and enforcing standards, as well as providing training, outreach, education, and assistance.

The Department of Labor oversees this agency to ensure that workplaces adhere to established safety regulations and standards. This includes conducting inspections, investigating complaints, and enforcing compliance with safety laws to prevent work-related injuries, illnesses, and fatalities.

The other options, such as the Department of Health, Environmental Protection Agency, and Occupational Safety Administration, do not have the primary role of enforcing workplace safety regulations. The Department of Health focuses more on public health concerns, the Environmental Protection Agency deals with environmental issues, and while its name includes "Occupational Safety Administration," it is not a separate entity from the Department of Labor; instead, it is the specific agency within the Department of Labor that addresses workplace safety directly.