Occupational Safety and Health Administration (OSHA) is like a set of rules that tell us how to stay safe when we are out at work. These rules help keep us from getting hurt or sick on the job. OSHA sets out things like rules about how machines should work and what kind of protective gear we should wear. They also tell employers to do things like keep their workplaces free from hazards like too much noise and dangerous chemicals. All of these rules help keep us safe and healthy at work!