What regulations govern the storage and shipment of portable cylinders for compressed gases?

The regulations that govern the storage and shipment of portable cylinders for compressed gases are outlined in the U.S. Department of Transportation (DOT) regulations, specifically in 49 CFR Parts 171-179. These regulations are designed to ensure the safe transportation of hazardous materials, including compressed gases, and cover various aspects such as classification, packaging, labeling, and documentation necessary for transport.

The DOT regulations are crucial because they establish standards that protect both the public and the environment during the movement of these potentially dangerous substances. They apply to all modes of transportation and are enforced to prevent accidents that could arise from improper handling or transportation procedures.

While OSHA regulations also address workplace safety concerning the use of compressed gases, they focus more on their handling within the workplace rather than on the overarching transportation rules. The EPA regulations pertain to environmental safety and the management of chemicals but do not specifically cover the shipment or storage of compressed gas cylinders. Similarly, NRC standards relate to nuclear materials and are not applicable to pressurized gas cylinders. Therefore, the U.S. DOT regulations are the most relevant and comprehensive for the safe storage and shipment of portable cylinders containing compressed gases.