DATE MANUFACTURED – Year of Manufacture of Shipping Container
Year of manufacture of shipping container, or simply Date Manufactured, designates the specific month and year when the container was manufactured and assembled. This information is crucial for the entire lifecycle of the container – it affects its safety certification, mandatory inspection schedule, economic value, and lifespan within international shipping operations.
The year of manufacture is not encoded in the container’s main identification number (the so-called ISO number or BIC code), but is explicitly stated on a special CSC plate, which is mandatory for all containers used in international shipping. This information is considered the “birth certificate” of the container and is key for all entities in the logistics chain – from manufacturers through ship operators to customs officials and inspectors.
The year of manufacture establishes the beginning of the validity of safety certifications, the inspection schedule, provides the basis for assessing the condition and value of the container, and ensures compliance with international safety standards applicable at the time of manufacture.
CSC Plate and Its Location
What is a CSC Plate?
CSC plate (from the Convention for Safe Containers) is a crucial safety certification that confirms the container meets the requirements established by the International Maritime Organization (IMO) in 1972. Without a valid plate, a container cannot be used for international shipping.
- The plate is made of fireproof and non-corrosive metal and is riveted to the outside of the container’s left door.
- The data on the plate must be permanently legible, with font and numerals at least 5 mm in size.
What information does the CSC plate contain?
| Data on plate | Meaning |
|---|---|
| CSC SAFETY APPROVAL | Title – confirmation of the plate’s purpose |
| Country and approval reference | National authority and certificate number |
| Date Manufactured | Month and year of manufacture (e.g., “05/2023”) – KEY INFORMATION! |
| Manufacturer’s serial number | Unique identification of the manufacturer |
| Max. gross weight | Maximum permitted weight of the container including cargo |
| Approved stacking | Max. weight that can be stacked on the container (at 1.8g acceleration) |
| Racking test load value | Load that the container structure must withstand during testing |
| Next Examination Date | Date of next mandatory inspection (under PES scheme) |
| ACEP Scheme Number | Scheme number for continuous inspection (under ACEP scheme) |
Combined CSC Plate (Combined Data Plate)
Modern practice often combines multiple certifications into a single panel:
- CSC information (see above)
- Customs plate (CCC) – confirms suitability for transport under customs seal
- Wood treatment data (for flooring) – important for meeting phytosanitary requirements of countries such as Australia
- Owner plate (optional) – name and number of the operator
Location: Left door, at eye level or slightly above it.
Role of International Institutions and Standards – Who Oversees Container Age and Marking?
Bureau International des Containers (BIC)
- Manages the global registry of ownership codes (first 3 letters of ISO number).
- Ensures that no two containers in the world have the same prefix.
- BIC does not encode the year of manufacture, but owners are responsible for the accuracy of data on the CSC plate.
International Maritime Organization (IMO)
- UN agency that establishes safety and environmental standards for maritime transport.
- Introduced the CSC convention (1972), which is the basis for the mandatory reporting of year of manufacture.
International Organization for Standardization (ISO)
- Creates and publishes technical standards, such as ISO 6346 (container identification).
- ISO 6346 defines the structure of the identification number, but not directly the year of manufacture.
Classification Societies
- Independent inspection and certification organizations (Bureau Veritas, Lloyd’s Register, ABS…)
- Perform manufacturing certifications, structural tests, and authorize the issuance of CSC plates.
Decoding Container Markings – Why Is the Year of Manufacture Not in the Main Number?
The standard ISO container number has 11 characters and consists of the following segments:
| Segment | Number of characters | Meaning | Example |
|---|---|---|---|
| Owner Code | 3 | Owner code registered with BIC | MSC |
| Equipment Category | 1 | U = container, J = equipment, Z = chassis | U |
| Serial Number | 6 | Serial number within the fleet | 123456 |
| Check Digit | 1 | Check digit (for verification of correct notation) | 7 |
The year of manufacture is not encoded here! All information about age, safety, and technical condition is exclusively on the CSC plate.
Significance of Year of Manufacture for the Entire Container Lifecycle
Basis for Safety and Inspection Schedule
According to IMO (CSC) rules, containers must be inspected regularly. There are two schemes:
- Periodic Examination Scheme (PES) – Periodic inspections: First inspection within 5 years of manufacture, then every 30 months. The date of the next inspection is marked on the CSC plate (“Next Examination Date”).
- Approved Continuous Examination Programme (ACEP) – Continuous scheme: Used by large operators who have a robust internal maintenance system. Every movement, repair, or handling means continuous inspection. Instead of a date, the scheme number ACEP is listed on the plate.
The year of manufacture is always the starting point for calculating the inspection schedule.
Determining Economic Value and Lifespan
| Container age | Typical use | Economic value |
|---|---|---|
| New (0–5 years) | Primary transport, maritime routes | Highest |
| 5–15 years | Secondary markets, storage, modification | Medium, depends on condition |
| 15+ years | Warehouse, building units, recycling, scrap | Low, depending on quality |
- Container lifespan in maritime transport: 12–15 years.
- Total lifespan (including secondary use): 25+ years.
Ensuring Regulatory and Operational Compliance
- Ports, customs authorities, and ship operators verify the validity of the CSC plate and container age.
- Expiration of certification (inspection not performed) means prohibition of loading onto a ship.
- Year of manufacture proves that the container meets construction standards applicable at the time of manufacture.
Practical Overview: How to Find and Verify the Year of Manufacture of a Container?
- Find the CSC plate on the container’s left door.
- Look for the “Date Manufactured” information – it is stated in the format MM/YYYY (e.g., 04/2018).
- Also check the validity of inspection (Next Examination Date or ACEP No.).
- In case of doubt, request original certificates or verify the data in global registries if available.
Frequently Asked Questions (FAQ)
Where do I find the year of manufacture of a shipping container?
The year of manufacture (month/year) is always stated on the CSC plate, which is riveted to the outside of the container’s left door, often as part of a combined plate with other certifications.
Is the year of manufacture encoded in the container’s main identification number?
No. The ISO number serves only to identify the owner, type, and serial number. The year of manufacture is exclusively on the CSC plate.
What is the significance of the CSC plate?
The CSC plate is a basic safety certificate without which a container cannot be used in international shipping. It confirms the structural integrity and safety of the container according to IMO rules.
What is the difference between maximum gross weight and tare weight of a container?
Maximum gross weight includes the weight of the container and cargo. Tare weight is the empty container itself. The difference determines the maximum possible cargo capacity.
How does the year of manufacture affect the inspection schedule?
The first inspection is always within 5 years of manufacture. Then every 30 months (PES), or continuously under an approved ACEP program.
Technical and Normative Details – Tables and Bullet Points
Obligations of Container Operator/Owner
- Ensure the readability of the CSC plate throughout its operational life.
- Comply with the inspection schedule according to the chosen scheme.
- Keep documentation of inspections and repairs.
- Update the data on the plate if the operator changes or a major repair is performed.
Overview of Main Standards and Conventions
| Standard/Convention | Abbreviation | Contains |
|---|---|---|
| Convention for Safe Containers | CSC | Safety requirements, certification, inspection obligations |
| International Organization for Standardization | ISO | Identification, dimensions, construction standards (e.g., ISO 6346) |
| Bureau International des Containers | BIC | Registration of ownership codes, global identification system |
Practical Tips for Purchasing, Inspecting, and Using Containers
- When purchasing a container, always request a photo of the CSC plate and verify the year of manufacture.
- For secondary use (warehouses, modifications), a younger container has higher lifespan and value.
- When transporting goods to destinations with strict regulations (Australia, New Zealand), also verify floor certification (wood treatment).
Interesting Facts and Connections
- The first standardized shipping containers were developed in the 1950s, but global standardization (including the mandatory reporting of year of manufacture) came only in the 1970s with the advent of containerization of world trade.
- Each container undergoes hundreds of trips and dozens of inspections during its lifetime – correctly stated year of manufacture is crucial for the safety of the entire global logistics system.
- Inspections performed according to CSC standards include visual inspections, tightness tests, static tests, and corrosion resistance tests.
The year of manufacture of a shipping container is a fundamental building block of its identity and safety. It is located on the CSC plate – an inconspicuous but crucial element of every container. Its knowledge is key not only for transporters and operators, but also for anyone who buys, modifies, or uses containers in the secondary market. Compliance with inspection intervals and knowledge of regulatory requirements protects assets, lives, and the smooth flow of global trade.
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