Number of compartments in a Tank Trailer.

Code indicating the location of the loading or discharge line connection used for loading or unloading product from a trailer or container.

Code indicating the material that is used in construction of the cargo tank vessel.

Code indicating the type of gaskets (used in the trailer valves and hoses) that are required to load or unload the product.

Code indicating the type of trailer (vessel) lining required by the product.

Reference number or identification number as defined for a particular Transaction Set, or as specified by the Reference Number Qualifier.