The main types of goods that can be transported by air include special and general air cargo. The special cargo includes over-dimensional and heavy-weight items, dangerous goods and hazardous materials, and temperature-controlled goods. Other types of special cargo are human tissue samples, organs, and remains fragile and high-value items, and live animals

According to IATA’s Dangerous Goods Regulations (DGR) Manual, “Dangerous goods (also known as hazardous materials or hazmat) are articles or substances which can pose a hazard to health, safety, property, or the environment. Some examples of dangerous goods are aerosols, lithium batteries, infectious substances, fireworks, dry-ice, gasoline-powered engines and machinery, lighters, and paint.