In what year was the OSHA act signed into law?

The correct answer is 1970 because that is the year the Occupational Safety and Health Act (OSHA) was signed into law. This landmark legislation was created to ensure safe and healthful working conditions for workers by setting and enforcing standards and by providing training, outreach, education, and assistance. The establishment of OSHA marked a significant shift in workplace safety and health regulations, reflecting the growing recognition of the importance of protecting workers from occupational hazards.

The other years listed—1965, 1981, and 1994—are not associated with the signing of the OSHA Act, which specifically aimed at reducing workplace injuries and deaths through regulation and oversight starting in the early 1970s. The timeline of OSHA's implementation has had long-lasting impacts on labor practices and worker safety standards in the United States.