What are the Differences Between a Container Number and a Seal Number?

What are the Differences Between a Container Number and a Seal Number?

A container number, also known as container identification number, is a reference number assigned to a freight container for legal and commercial purposes.

Container seal number is an identification number of a container seal. Each container seal has an individual identification number.

Both container numbers and seal numbers are important international transportation security and safety measures and monitored closely by customs offices during the import and import stages.

On this post, I will identify the main differences between a container number and a container seal number.

Differences Between Container Number and Seal Number:

Easy to Locate / Hard to Locate:

Container number is printed on three spots of each freight container: one on the doors end, one on the side wall and one on the top of the container.

It is very easy to locate a container number.

On the other hand, a seal number is affixed to each container seal, which is a small item.

It is not easy to locate a seal number comparing to a container number.

Tracking a shipment:

It is possible to track a shipment by a container number. On the other hand you can not track a shipment by a seal number.

International Coding Standard:

Freight containers are numbered by an international organization called BIC (The Bureau International des Containers) according to an internationally recognized ISO 6346 standard.

Container seals are numbered by each seal producer or container liners according to their internal corporate rules.

What is a Container Seal Number? Explanations with Examples

What is a Container Seal Number? Explanations with Examples

Customs and Border Protection departments of countries have one basic goal.

Allowing the clean cargo pass through the customs, while detecting and preventing the entrance of illegal cargo such as narcotics, guns, some types of chemicals etc.

To achieve this objective, each party in international logistics have to follow certain security rules. Sealing freight containers with proper seals is one of these security measures.

It is compulsory for every shipping container to have at least one seal before a shipping line allows the container to be shipped.(1)

Seal number is an identification number of a container seal. Each container seal has an individual identification number.

Container Seal Documentation Process

Under Full Container Loads(FCL), it is shippers responsibility to inform the seal number along with other relevant information stated in the shipping instructions to the carrier, after securely stuffing and sealing the container.

Under Less Container Loads (LCL), it is the freight forwarder who stuffs and seals the container, not the shipper. As a result under LCL shipments, the freight forwarder must inform the seal number to the carrier.

In either way, the seal number must be properly documented.

Example:

G2382564 is a seal number that belongs to CMA CMG container liner group (APL) that is used to seal a 40HC container with container number APHU7124611.

References:
  1. How to seal a shipping container and how many seals should a container have..