Standards and certification
ISO 6346
ISO 6346 is the international standard for coding, identification and marking of freight containers. It defines the container identification system, with a way to check that an ID was written correctly. It also defines size and type codes and the operational marks shown on the container.
Why it matters
The ID you read on the door and roof of a container comes from ISO 6346. Operators use it to track fleet units, match paperwork to the right box, book pickups and report damage. Because the system includes a check feature, a mistyped ID can be caught before it causes a billing or dispatch error. A common mistake is to treat the ID as a serial number you can invent for a modified or repainted unit. If you repaint or refurbish a container, keep the existing marks readable and consistent with your records. Do not change an ID without a clear procedure and the owner's approval.
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Definition source: iso.org
Related terms
ISO 668
ISO 668 is the international standard that classifies series 1 freight containers by their external dimensions. It sets the matching ratings, which include maximum gross mass, and gives minimum internal and door opening sizes for some container types. It covers containers meant for intercontinental traffic.
ISO 1496
ISO 1496 is a series of international standards for the specification and testing of series 1 freight containers. Part 1 covers general cargo containers for general purposes, including totally enclosed boxes and some vented or open top types. Other parts cover tank, thermal, dry bulk and platform containers.
CSC plate
A CSC plate is a metal safety approval plate fixed to a freight container under the International Convention for Safe Containers. It shows that the container was approved for international transport and carries the technical data and examination information for that container. The plate is usually fixed to a container door.
container condition report
A container condition report is a written record of a container's condition at one point in time. It lists findings such as dents, holes, rust, floor and door issues, usually with photos. Operators use it when units leave or return, using criteria such as the IICL inspection guide.
container survey
A container survey is a formal inspection of a container by a qualified surveyor, with a written result. Surveys check that a container meets safety standards, such as the CSC, before shipping. They can also support valuation and damage assessment. Costs vary by provider.
shipping container
A shipping container is a standardized steel box used to move freight by ship, rail and truck without unloading the goods. Most are rectangular, closed boxes with doors at one end. Many are reused for storage after their sea service ends.
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