What is the primary role of the DOT concerning disposable cylinders?

The primary role of the Department of Transportation (DOT) concerning disposable cylinders is to set manufacturing standards. This includes overseeing the design, construction, and testing of cylinders used for transporting hazardous materials, including refrigerants. The DOT ensures that these cylinders are built to specifications that guarantee safety during transport and prevent leaks or failures that could pose a risk to public health and the environment. By establishing and enforcing strict guidelines on how these cylinders should be manufactured, the DOT aims to protect both the users and the environment from the hazards associated with improper handling and transportation of potentially harmful substances.

While the DOT does have a role in safety regulations, the specifics of creating environmental regulations, overseeing the sale of refrigerants, or licensing technicians typically fall under the jurisdiction of different agencies or organizations, such as the Environmental Protection Agency (EPA) for environmental regulations and technician certification.