Which term refers to a principle and procedure of DGR that includes a UN list of articles and substances acceptable for air transportation?

• A. Classification
• B. Prohibitions
• C. Packaging
• D. Hidden Hazards

Answer: (A)

The idea being tested is how Dangerous Goods Regulations determine transport eligibility through classification. Classification is the process of identifying exactly what the dangerous good is—its hazard class, packing group, and the correct UN number and proper shipping name—by using the UN list as the reference. This keeps the information consistent and ensures you know what rules apply for air transport. By correctly classifying, you can confirm that an article or substance is permitted for air transport and determine the specific packaging, labeling, documentation, and handling requirements that must be followed.

The other terms relate to different aspects: prohibitions cover items that are not allowed to be transported at all; packaging concerns how goods must be packed to meet safety standards; hidden hazards address substances that may present risk under certain conditions but aren’t obviously dangerous from their name alone.