The history of the Occupational Safety and Health Administration (OSHA) in the United States is a narrative of labor struggles, workplace disasters, and the enduring commitment to worker safety.
OSHA, established under the Occupational Safety and Health Act of 1970, has had a profound impact on the American workforce, shaping the way employees are protected from job-related hazards. This agency’s journey is a testament to the nation’s recognition of the importance of workplace safety.
The roots of OSHA’s formation lie in the American labor movement. During the late 19th and early 20th centuries, workers across various industries faced deplorable working conditions.

From textile mills to coal mines, employees were subjected to long hours, low wages, and hazardous environments. Safety standards were virtually non-existent, and accidents were alarmingly common.
The labor movement emerged as a response to these injustices. Labor unions organized strikes, demanding better pay and safer workplaces. Key moments, such as the Triangle Shirtwaist Factory fire in 1911, where 146 garment workers died due to locked exit doors and inadequate fire safety measures, served as grim reminders of the dire need for workplace reforms.
In response to mounting public pressure and advocacy from labor unions, some safety regulations were enacted at the state and federal levels in the early 20th century.
However, these regulations were often industry-specific and lacked uniformity. Furthermore, enforcement was inconsistent, leading to continued workplace accidents and injuries.
One significant development in workplace safety came in 1970 with the passage of the Coal Mine Safety and Health Act, which aimed to improve safety conditions for coal miners. This act provided a framework for federal oversight of mine safety and established the Mining Enforcement and Safety Administration (MESA).
While the Coal Mine Safety and Health Act was a step in the right direction, there was a growing recognition of the need for comprehensive workplace safety regulations that would encompass all industries.
The catalyst for OSHA’s creation was a series of deadly workplace incidents that highlighted the urgency of such legislation.
In 1968, the Farmington Mine disaster in West Virginia resulted in the deaths of 78 coal miners. This tragedy led to public outrage and demands for stronger safety regulations.
Similarly, in 1970, the explosion at the Chemical Plant in Phillips, Texas, claimed the lives of multiple workers and resulted in widespread calls for action.
In response to these events and the broader labor movement’s efforts, the Occupational Safety and Health Act of 1970 was signed into law by President Richard Nixon on December 29, 1970.
This landmark legislation created OSHA, charging the agency with the responsibility of developing and enforcing national safety and health standards to protect American workers.
The mission of OSHA is succinctly stated in the Occupational Safety and Health Act of 1970: “To assure safe and healthful working conditions for working men and women by authorizing enforcement of the standards developed under the Act.
By assisting and encouraging the States in their efforts to assure safe and healthful working conditions; by providing for research, information, education, and training in the field of occupational safety and health.”
In practice, this mission translates into the development of safety and health standards, their enforcement through inspections and investigations, outreach and education to employers and employees, and partnerships with stakeholders such as labor unions and industry groups.

Since its inception, OSHA has been instrumental in improving workplace safety in the United States. Key milestones and impacts include:
OSHA’s history is a testament to the evolution of workplace safety in the United States. From the early labor movement to the establishment of the agency, the nation’s commitment to safeguarding workers has come a long way.
OSHA continues to play a pivotal role in reducing workplace injuries and fatalities, promoting a culture of safety, and ensuring safer workplaces across the country.