Survey Code – Repair Code

Survey Codes and Repair Codes form the fundamental language in the field of management and repairs of shipping containers. These are standardized alphanumeric codes that serve to precisely describe, document, and communicate the condition and damage of shipping containers worldwide. Thanks to these codes, the condition of each container can be simply, quickly, and without language barriers communicated to all participants in the logistics chain – shipowners, depots, repair companies, leasing companies, and inspectors themselves.

Key Benefits of the Code System

• Standardization of inspections: Damage to a panel on the side of a container is always described the same way – in Rotterdam, Shanghai, and Prague.
• Acceleration and precision of communication: Instead of complex descriptions, a few codes are sufficient, which everyone understands unambiguously.
• Process automation: Enables electronic data exchange in repair estimates, approvals, and invoicing.
• Unambiguous evidence: Codes serve as an objective basis in claims, acceptance, and container handovers.
• Data analysis: Collection and evaluation of damage over time leads to improvements in handling, design, and damage prevention.

Codes answer three fundamental questions: What is damaged? Where? How to repair it?

Why is a Common Language Needed?

Previously, there was a “Tower of Babel” in container logistics – each entity used its own vocabulary, which led to misunderstandings, disputes, and unnecessary costs. With the advent of global trade and the movement of millions of containers between countries, it became necessary to introduce a unified, unambiguous, and internationally recognized standard.

Main Standards and Institutions

Overview of Key Standards and Organizations

CEDEX (Container Equipment Data Exchange)

• International standard ISO 9897
• Defines alphanumeric codes for all components, types of damage, and repairs
• Supports electronic data exchange (EDI)
• Foundation for communication throughout the industry

EDIS (Equipment Damage and Inspection System)

• IICL system, based on CEDEX
• Preferred codes for leasing companies
• Emphasis on accuracy, minimization of disputes, and simplification of repairs

ISO 6346

• Standard for container identification (unique number on doors)
• Prescribes the structure of the number: owner prefix (BIC), serial number, check digit

BIC

• Manages owner prefixes (e.g., MSCU, MAEU)
• Ensures uniqueness and traceability of container owner

IMO and CSC (Convention for Safe Containers)

• Every container must have a valid CSC label
• Safety, load capacity, stackability, suitability for transport

Structure and Use of Survey and Repair Codes

What Does a Standardized Damage Record Look Like?

Each record consists of several codes that together form a detailed description of the damage and proposed repair.

1. Component Code

Determines exactly which part of the container is damaged.

2. Location Code

Localizes the damage to a specific part of the container.

• First character (area): L (left), R (right), T (roof), F (front), D (door), U (bottom)
• Second character (section): T (upper half), B (lower half), L (left), R (right)
• Third and fourth characters (grid): Numbering of segments (e.g., 04 = fourth segment)

For example, LT04 means left side, upper half, segment 4.

3. Damage Code

Describes the type of damage.

4. Repair Code

Specifies the repair method.

5. Dimensions and Quantities

Clarify the extent of damage and work (length, width, depth, quantity).

• Example: L:300 W:150 D:50 (length 300 mm, width 150 mm, depth 50 mm)

Practical Example of Recording

An inspector finds a significant dent in the lower part of the right side wall of a standard container:

PAA - RB07 - D - RPS - L:300 W:150 D:50

Meaning:

• PAA: panel damaged
• RB07: right side, lower half, segment 7
• D: dent
• RPS: repair by straightening (not replacement)
• L:300 W:150 D:50: damage dimensions in mm

Detailed Explanation of Key CEDEX/IICL Codes

Table of Most Common Component Codes and Their Meaning

Types of Damage in Detail

• Dent (D): Most common damage, occurs from dropping or improper handling. Usually can be repaired by straightening.
• Perforation/Hole (H): Puncture from forklift tines, collision – must be welded or new segment inserted.
• Corrosion (CST): Typical for older containers, especially on frame and floor. Requires grinding, application of anti-corrosion coating, or replacement of material.
• Missing part (M): E.g., seal, lock cam, hinge – requires replacement with original part.
• Break (BR), Crack (CR): Critical for load-bearing parts, usually requires replacement or welding.

Repair Methods

• Alignment/Straightening (RPS, ALI): Used for minor dents, panel deformations.
• Replacement (REP): For extensive damage, wear, or missing parts.
• Welding (WLD): Cracks, holes, frame damage.
• Part insertion (INS): Segment replacement of panel or floor.
• Cleaning (CLN): Removal of rust, dirt, lubricants.
• Installation of new element (ADD): When seal, locking elements are absent.

CEDEX vs. EDIS – System Comparison

Survey/Repair Codes in the Context of Other Container Markings

Each container bears a number of markings and data that together provide a complete picture of its identity and condition.

• Identification number (ISO 6346): E.g., HZKU 123456 7 (owner prefix, serial number, check digit)
• Size and type code: E.g., 22G1 (20 feet, 8’6″ height, universal type)
• Operating markings: Maximum gross weight, tare, net weight
• CSC label: Confirmation of suitability according to IMO, requirement for international transport

Technology and Future of Code Systems

Automation and Digitalization

• Automated inspections: AI systems and camera gates detect damage and generate codes in real time.
• IoT sensors: Report impacts, vibrations, changes in position and environment, automatically log events into the CEDEX/EDIS system.
• Big Data analysis: Millions of records enable route optimization, damage prediction, and improvement of container design.
• Cloud collaboration: All partners have online access to the status, repairs, and history of the container. Digitalization leads to transparency and speed.

Significance for Practice and Safety

Thanks to Survey and Repair Codes:

• Risk of claims and disputes is reduced
• Safety of goods transport is increased
• Invoicing and repair approval is accelerated
• Preventive inspections and maintenance are optimized
• Container lifespan and value are improved

The CEDEX, EDIS code systems and ISO/IICL standards represent the fundamental “grammar” of the container industry. They enable safe, efficient, and transparent management of shipping container repairs worldwide. Their importance will grow with further development of automation, artificial intelligence, and logistics digitalization.

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