Video: NNSA's Office of Secure Transportation (2:00)

The Office of Secure Transportation (OST) is managed by the DOE/National Nuclear Security Administration. OST is responsible for the safe and secure transport in the contiguous United States of government-owned special nuclear materials. These classified shipments can contain nuclear weapons or components, enriched uranium, or plutonium. The cargo is transported in highly modified secure tractor-trailers and escorted by armed Federal Agents in other vehicles who provide security and national incident command system response in the event of emergencies.