Final answer:
The Department of Transportation requires safety measures when transporting cylinders containing used refrigerant, including proper packaging and labeling as well as certified individuals to handle hazardous materials.
Step-by-step explanation:
The Department of Transportation (DOT) requires certain safety measures when transporting cylinders containing used refrigerant. This is to ensure the proper handling and transportation of hazardous materials and to prevent accidents and environmental damage.
One safety measure required by the DOT is the use of proper packaging and labeling of the cylinders. The cylinders must be securely packaged to prevent leakage or damage during transportation, and they must be labeled with the appropriate hazardous materials warnings and identification.
In addition to packaging and labeling, the DOT also requires that individuals transporting the cylinders be properly trained and certified to handle hazardous materials. This training ensures that they are aware of the risks involved and are equipped to handle any emergencies or incidents that may arise.