Packaging Design and Selection DOT has many standards for the design of packaging. Regulations specify strength, dimensions, and other properties for fiberboard boxes and drums, glass carboys, steel drums and liners, tank trucks, rail tank cars, and many other containers. Regulations also specify what type of container to use for each hazardous materials. The major purpose of these design standards is to minimize the release of hazardous materials, even if the packaging is in an accident. To dramatize the value of hazardous material packaging, the British government placed a shipping container for nuclear fuel rods on a railroad track and crashed a train into it at 100mi/hr. The container withstood the crash without a leak.