The Occupational Safety and Health Administration (OSHA) was created in 1970 to promote, regulate, and set standards for safe and healthy workplaces. Hall Signs OSHA signs promote a healthier, safer workplace by providing well-made, customizable signs for many workplace scenarios. Danger, warning, caution, and radiation signs can all indicate immediate threats, while signs encouraging workers to think, be careful, notice or promote safety first all encourage a safer, more productive work environment. Over 100 standard legends are available to clarify your header message. Looking for something you don't see here? Contact Us and we'll be happy to assist you.