ThePackaging and Shipmentcompetency in CLT highlights that certain materials—particularly liquids, chemicals, and powdered or granulated bulk goods—require sealed containment to prevent leakage, contamination, or evaporation.Drums and barrels(metal, plastic, or fiber) meet these requirements because they provide durable, sealed storage and easy handling via pallet jacks or drum clamps. Corrugated containers lack liquid containment strength, and wire mesh containers are ventilated for solid goods. Using proper packaging ensures regulatory compliance for hazardous or sensitive materials and preserves product quality during transport and storage.