Final answer:
The safety and health of American workers are not assured by JACHO but by OSHA, an agency created to set and enforce standards for workplace safety and health is false.
Step-by-step explanation:
The statement that the safety and health of American workers are assured by JACHO is false. The organization responsible for this is the Occupational Safety and Health Administration (OSHA). OSHA was established under the Occupational Safety and Health Act, signed into law by President Richard Nixon on December 29, 1970. Its mission is to "assure safe and healthful working conditions for working men and women by setting and enforcing standards and by providing training, outreach, education, and assistance". OSHA's wide range of standards includes workplace safety measures such as fall protection, prevention of trenching cave-ins, infectious disease exposure prevention, safety in confined spaces, and chemical hazards. Furthermore, OSHA enforces whistleblower statutes and oversees general workplace safety under the General Duty Clause when no specific standard applies.