Hazardous goods tanker trucks are designed to transport a variety of dangerous substances, including flammable liquids, corrosive chemicals, and toxic materials. The construction of these trucks emphasizes safety, with features like double - walled tanks, emergency shut - off valves, and leak - detection systems. The materials used for the tank and its components are carefully selected based on the hazardous properties of the cargo. They are also equipped with proper ventilation to prevent the build - up of hazardous vapors and fire - suppression systems. Hazardous goods tanker trucks must comply with strict international and local regulations to ensure the safe transportation of dangerous goods and protect public health and the environment.