Sets down an identification system with an associated system for verifying the accuracy of its use having: mandatory marks for the presentation of the identification system for visual interpretation, optional marks which may be used for Automatic Machine Readable Information system purposes, a data coding system for country and and container size and type with corresponding optional marks for the display of these; operational marks and physical presentation of marks. Excludes temporary operational marks of any kind, permanent marks, data plates, etc. which may be required by intergovernmental agreement, national legislations or by non-governmental organizations. Does not cover the display of technical data on tank containers.