Dangerous Goods Diamonds, also known as hazard diamonds or placards, are a standardized system for visually representing the types of hazards associated with dangerous goods. These diamonds consist of four color-coded quadrants, each representing a specific aspect of the hazard: blue for health hazards, red for flammability, yellow for reactivity, and white for special hazards. Within each quadrant, a numerical rating is assigned to indicate the severity of the hazard. These diamonds are prominently displayed on containers, vehicles, and storage areas to quickly communicate the potential risks to workers, emergency responders, and others in the vicinity. The use of Dangerous Goods Diamonds helps ensure that the appropriate precautions are taken when handling, storing, and transporting hazardous materials, promoting safety and compliance with regulations.