If a railcar is designated as DOTX, what does that signify?

A railcar designated as DOTX signifies that it is for hazardous materials. The designation indicates that it has been inspected and authorized by the Department of Transportation (DOT) for the transport of specific materials that may pose risks during transit. This specific coding is essential for the identification and handling of railcars that may carry hazardous materials, ensuring that appropriate safety measures are in place during transportation and emergency response. Understanding these designations helps responders and railway personnel recognize the potential hazards associated with the cargo and take necessary precautions.