Which type of transport prohibits certain dangerous goods on passenger aircraft?

• A. Ground transport only
• B. Rail transport
• C. Passenger aircraft shipments or combined passenger-cargo restrictions under IATA DGR
• D. Sea shipments

Answer: (C)

Air transport imposes strict prohibitions on dangerous goods specifically for passenger aircraft because safety on board hundreds of people is the top priority. The IATA Dangerous Goods Regulations define what can be shipped on passenger aircraft and also cover shipments that combine passenger and cargo. Many dangerous goods are forbidden on passenger flights, and those that are allowed often must be shipped only on cargo aircraft or under highly controlled conditions with special packaging, labeling, and documentation. This framework—passenger aircraft shipments or combined passenger-cargo shipments under IATA DGR—is what enforces these prohibitions. Ground, rail, and sea have their own rules, but the restriction described here directly relates to air transport under the IATA DGR.