Which operation is UN3091 Section I applicable to?

• A. Cargo aircraft only.
• B. Passenger aircraft only.
• C. Ground transport only.
• D. Ocean shipping only.

Answer: (A)

UN3091 Section I specifies how lithium metal batteries contained in equipment can be shipped by air, and it applies to cargo aircraft only. The hazard posed by lithium metal batteries requires stringent handling, stowage, and fire-suppression provisions that are provided on cargo-only flights, where trained personnel and appropriate equipment are available. Because of these safety controls, shipments under this section are not authorized for passenger aircraft, and they’re not governed by ground or ocean transport rules in this context. In short, this section limits operation to air transport on cargo aircraft to manage the risk effectively.