Survey Code – Damage Code

In the field of international container transport, Survey Code and Damage Code are the fundamental language that connects all articles of the global logistics chain – from shipowners, through leasing companies, repair depots, to insurance companies and container inspectors. These are standardized alphanumeric identifiers serving to precisely, unambiguously and quickly record the type, location and extent of damage or defects on a container.

Main objectives of damage/survey codes:

• Replacement of ambiguous verbal descriptions with structured data
• Fast, accurate and universal communication across the industry (including EDI – electronic data exchange)
• Efficient planning and billing of repairs
• Minimization of disputes regarding liability
• Ensuring compliance with safety standards (ISO, IMO, IICL)

Modern damage coding systems are based on international standards, in particular CEDEX (Container Equipment Data Exchange, ISO 9897) and IICL. These systems are the fundamental building blocks for digitalization, automation and data analytics in the field of container fleet management.

What does the Damage Code consist of? (Anatomy of a damage record)

Each damage record (damage code line) is formed by a combination of several codes that together describe:

• Component (which part of the container)
• Location (where exactly)
• Type of damage (what happened)
• Recommended repair (how to fix it)
• Size/extent (how much/how large)

Record structure

Key codes and their meaning

1. Component Codes

Component codes determine the exact part of the container where damage occurred. They are based on the construction of ISO containers and are detailed for standard, refrigerated and special containers. Examples of the most common components:

For refrigerated (reefer) and special containers, there are additional specific codes (e.g. insulation, cooling unit, sensors).

2. Location Codes

Location codes determine the exact location on the container using a four-character system (virtual grid). They combine side, segment and section:

Example:

DT2N = door side, top half, section 2

3. Damage Codes

These codes describe the actual nature of the damage, always in standardized form:

Note: Codes can be combined and supplemented with further clarifications according to the type of container and damage.

4. Repair Codes

Standardized repair codes determine the recommended intervention to be performed:

5. Size and quantification codes

The record also contains damage dimensions (e.g. 120×80×15 mm), or possibly the number of pieces, length or area. These data are key to accurate calculation of repair costs and work planning.

Example of damage code notation

SPL-B5N-D-ST 250x120x25mm

Explanation:

Left side panel, bottom half, section 5, dent, straightening, dimension 250×120×25 mm.

Most significant international standards

CEDEX (Container Equipment Data Exchange, ISO 9897)

• Global standard for structured communication about container condition and repairs
• Managed by the Bureau International des Containers
• Key for EDI and digitalization of processes between all parties
• Continuously updated, emphasis on unambiguity and machine readability

IICL (Institute of International Container Lessors)

• Establishes inspection and repair criteria (e.g. IICL 6, UCIRC)
• Focuses on the practice of depots, leasing companies and insurance companies
• Defines when damage is already “beyond standard” and must be repaired

COA (Container Owners Association) – harmonization

• Initiator of unification of various “dialects” of codes
• Defined the so-called COA CEDEX Syntax – valid combinations of codes for data exchange
• The goal is global interoperability, easy digitalization and automation

Role of container inspector (Container Surveyor) and types of inspections

Damage/survey codes are the basic working tool of certified inspectors. Their application is key in these processes:

• On-hire survey – Entry inspection before lease (protection of lessee from being charged for old damage)
• Off-hire survey – Exit inspection after return (identification of new damage, basis for repair billing)
• Condition survey – Ongoing condition inspection (Cargo Worthy, Wind & Watertight, etc.)
• Post-repair survey – Inspection after repair (verification of compliance with requirements, recording in the system)

Caution: For all these purposes, accuracy and consistency of records are essential – in case of disputes, they serve as key evidence material.

Relationship to other container markings and certifications

Damage codes are closely linked to other mandatory container identifications:

• ISO container number (ISO 6346) – Unique identification, all records are assigned to a specific number
• CSC label (Convention for Safe Containers) – International safety certification (IMO); serious damage may temporarily invalidate CSC validity => need for repair and new inspection

Trends and future of damage coding: Digitalization and automation

With the rapid development of digitalization and automation, significant changes are coming in the field of container damage detection and processing:

Automated damage detection

• High-speed cameras and AI systems at port gates and depots automatically scan containers as they pass through
• Machine learning evaluates images and compares them with a database of previous inspections
• Automatically generated damage codes without human intervention (e.g. recognition of dents, corrosion, missing parts)

Online platforms and cloud reporting

• Mobile applications and cloud enable instant code entry by inspectors in the field
• Instant access to data for owners, lessees and repairs
• Significant acceleration of the approval and repair execution cycle

Big Data and predictive maintenance

• Analysis of huge amounts of standardized records reveals trends and risk factors (e.g. certain routes, ports, handling cause the most damage)
• Predictive maintenance – investment in strengthening risk areas on containers before accidents occur
• Longer container lifespan, reduced costs, more environmentally responsible operations

Practical examples of use (case studies)

1. Practical example: Returned rental container has a record:

FLR-B7N-H-RP 20x20cm
(Floor, bottom half, section 7, perforation, complete part replacement, dimension 20×20 cm)
→ Price calculation automatically generated, approved by owner, repair order placed.

1. Automated inspection: AI system recognizes a dent 30×10×2 cm on the roof panel, automatically creates a record:

RFP-T3N-D-ST 30x10x2cm
→ System assigns repair and places it in the queue at the repair yard.

Frequently asked questions (FAQ)

What is the difference between CEDEX and IICL codes?

CEDEX is a universal language for describing condition and repairs, IICL determines the rules when damage is already “beyond the limit” and must be repaired. In practice, they are used together.

Where can I find complete code tables?

Official lists are published by the Bureau International des Containers (for CEDEX) and IICL (for inspection standards).

Why is it necessary to provide codes including dimensions?

The size/extent of damage is key to correct calculation of repair costs and to determine the severity of the defect.

Damage and survey codes form the backbone of efficient and safe container fleet management – they enable unambiguous determination of what, where and how was damaged, how to fix it and at what cost. They are the foundation for digitalization, automation, predictive maintenance and environmentally responsible operations. Without them, global container logistics would not be possible in the form we know it today.

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