For the purpose of this chapter, these assorted acts and amendments will be referred to as the Labor Management Relations Act. The laws were enacted to define the legitimate rights of both employers and employees in their relations affecting commerce, to encourage collective bargaining, and to eliminate certain practices by management and labor that are detrimental to the general welfare. The Occupational Safety and Health Act of 1970 was enacted to assure safe and healthy working conditions for every working man and woman in the nation. Hazard awareness is a key element of safety training specifically, and health and safety programs in general. Environmental concerns influence the manufacturing workplace. The U.S. government’s product liability laws require that all products comply with appropriate standards and regulations and be free of safety-related defects. Human factors is often called ergonomics. Human factors and safety engineering emerged from the disciplines of industrial engineering and psychology. Repeated-motion injuries can be prevented by proper tool selection, minimized force-application requirements, and adding variety to the tasks being performed (providing an opportunity for the body to recover).