Dangerous goods are regulated by which set of codes and regulations?

• A. DOT
• B. EPA
• C. UN model codes and regulations
• D. OSHA

Answer: (C)

International safety in shipping dangerous goods rests on a single, universal framework that standardizes how they’re classified, packaged, labeled, documented, and handled. This framework is the UN model regulations on the Transport of Dangerous Goods. Because these model regulations form the basis for national and mode-specific rules—such as IATA’s DGR for air, the IMDG Code for sea, and the U.S. DOT’s 49 CFR implementations—they’re the best answer. While agencies like DOT, EPA, and OSHA play important regulatory roles in safety and environmental or workplace contexts, they are not the comprehensive set of international transport codes themselves.