This International Standard establishesa) 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 (AMRI) system purposes;b) a data coding system for country and container size and type with corresponding optional marks for the display of these;c) operational marks - mandatory and optional;d) physical presentation of marks.The term "mandatory" and "optional" in this International Standard are used to differentiate between thoseISO marking provisions, which shall necessarily be fulfilled by all containers, from those which are not required of all containers. The optional marks are included to further comprehension and promote uniform application of the optional mark. If a choice has been made to display an optional mark, the provisions laid down in this International Standard relating to the mark shall be complied with.The terms "mandatory" and "optional" do not refer to requirements of any regulatory body.Exclusion: Temporary operational marks of any kind, permanent marks, data plates, etc. which may be required by intergovernmental agreement, national legislations or by nongovernmental organizations other than ISO are not covered in this International Standard.Neither does this International Standard cover the display of technical data on tank containers (see ISO 1496/3). Nor does it, in any way, include identification marks or safety signs for items of cargo which may be carried in freight containers.NOTE - Containers marked in accordance with the previous edition of ISO 6346 (1981) need not be remarked.Field of applicationThis International Standard applies to all standard freight containers covered by International Standards and should, wherever appropriate and practicable, be applied to containers other than those covered by International Standards.

Under Revision see DR 98596 CP First published in Australia as part of AS E44-1969.Revised and redesignated AS E44.1-1971.Revised and redesignated in part as AS 1564-1974.AS 1564-1974 jointly revised and redesignated as Joint Standard AS/NZS 3711.9:1993. First published in Australia as part of AS E44-1969. Revised and redesignated AS E44.1-1971. Revised and redesignated in part as AS 1564-1974. AS 1564-1974 jointly revised and redesignated as Joint Standard AS/NZS 3711.9:1993.