Final answer:
The Occupational Safety and Health Administration (OSHA) is the agency that ensures a safe work environment, established by law to set and enforce standards, and to provide training and assistance for workplace health and safety.
Step-by-step explanation:
The agency responsible for ensuring a safe work environment is the Occupational Safety and Health Administration (OSHA). Established under the Occupational Safety and Health Act and signed into law on December 29, 1970, OSHA's mission is to assure safe and healthful working conditions for working men and women. This includes setting and enforcing standards, as well as providing training, outreach, education, and assistance for workplace health and safety.
In fulfilling its mission, OSHA issues regulations on a wide variety of workplace hazards, including chemical exposure, personal protective equipment, and preventing falls and dangers from operating heavy equipment. Employers are required to provide safety training, supply personal protective equipment at no cost, keep records of work-related injuries, and report certain incidents, such as workplace fatalities and severe injuries, to OSHA.