Which agency is responsible for ensuring workplace safety?

The Occupational Safety and Health Administration (OSHA) is tasked with ensuring workplace safety throughout the United States. Established under the Occupational Safety and Health Act of 1970, OSHA's primary role is to set and enforce standards for safe and healthy working conditions. The agency provides training, outreach, education, and assistance to employers and employees, helping them understand and comply with safety regulations. By conducting inspections and investigations, OSHA works to detect and eliminate hazards that could lead to workplace injuries or illnesses.

In contrast, the other agencies listed have different responsibilities. The Department of Health and Human Services focuses on public health and welfare, the Environmental Protection Agency is concerned with environmental protection and regulation, and the Department of Transportation oversees transportation systems rather than workplace safety. Therefore, OSHA is the correct agency designated specifically for workplace safety enforcement and standards.