According to DOT Regulation 49 CFR, what must be recorded on the shipping papers for hazard class 2.2?

For hazardous materials within hazard class 2.2, which includes non-flammable, non-toxic gases, the regulations set forth by the Department of Transportation (DOT) require specific details to be included on shipping papers for safe and compliant transport. One important requirement is to note the number of cylinders being shipped for each type of gas.

By recording the number of cylinders, those responsible for handling and transporting the materials have a clear understanding of the quantity and packaging of the hazardous material. This information is crucial for assessing the potential risks during transport, ensuring that appropriate safety measures are in place, and fulfilling legal obligations. It also aids first responders in managing emergencies effectively, as the number of cylinders can influence the potential hazards at the scene of an incident.

The other options, while they may seem relevant to the transport of refrigerants or hazardous materials in general, are not specifically required by DOT regulation 49 CFR for hazard class 2.2. Thus, the inclusion of the cylinder count on the shipping documents aligns accurately with the regulatory requirements for this hazard class.