In the world of shipping and logistics, the accurate reporting of container weights is of paramount importance. The International Maritime Organization (IMO) recognized this need and introduced the concept of Verified Gross Mass (VGM) through the Safety of Life at Sea (SOLAS) regulations. Cargo, dunnage, and bracing add to the tare weight of the container, bringing the total weight to the VGM.
What is Verified Gross Mass (VGM)?

The shipping industry relies heavily on Verified Gross Mass, sometimes known as VGM. It’s the sum of the weight of everything in a container, including the contents, dunnage, and bracing materials being transported by sea. The purpose of VGM is to ensure the accurate reporting of container weights, which plays a vital role in maintaining the safety and stability of ships at sea. By providing the verified weight of containers, shippers help carriers and port terminals make informed decisions regarding stowage and loading processes.
The Importance of VGM
The introduction of VGM regulations by the IMO was driven by the need to improve maritime safety and mitigate risks associated with inaccurate weight reporting. In the past, misreported container weights had led to accidents, jeopardizing the lives of seafarers and causing damage to cargo and vessels. By implementing VGM requirements, the industry aims to enhance safety measures, prevent container stack collapses, and ensure proper stowage and handling of cargo. VGM serves as a critical tool for maintaining the integrity of the supply chain and safeguarding all stakeholders involved in container transportation.
VGM Regulations and Compliance
Beginning on July 1, 2016, shippers must report the VGM of a loaded container to the ocean carrier and/or port terminal representatives in accordance with the SOLAS standards. Container loading denial, increased expenses, and possible fines await those who do not adhere to these requirements. Shippers must understand their responsibilities and the consequences of non-compliance to ensure smooth operations and avoid disruptions in the shipping process.
Calculating VGM: Methods and Considerations

There are two approved methods for calculating the Verified Gross Mass of a container. The first method involves weighing the packed and sealed container itself using a calibrated and certified weighing bridge or scale. The weight of the truck and its fuel, if present during weighing, should be subtracted from the total weight. Alternatively, you can use the tare weight listed on the Container Safety Convention (CSC) plate and add the weight of your cargo, packaging materials, dunnage, and securing equipment to that total. While both methods are acceptable, it is essential to ensure compliance with local regulations and accuracy standards when conducting weight measurements. Additionally, considering potential minor weight variations due to factors such as container wear and tear, evaporation, or humidity changes is crucial to maintaining accuracy in VGM reporting.
Responsibilities of Shippers
Shippers play a central role in the VGM process as they are responsible for providing accurate weight information to the carrier and port terminals. The VGM of a container must be declared by the shipper, who is named on the bill of lading as the responsible party. It is crucial for shippers to understand their obligations and take necessary steps to comply with VGM regulations. This includes planning VGM into the shipment cycle, establishing processes for integrating weighing services, ensuring timely submission of VGM information, and familiarizing themselves with local regulations and potential penalties for non-compliance. Shippers should also communicate with their logistics providers and utilize available tools and platforms to facilitate the smooth and efficient transmission of VGM data.
Terminal and Carrier Responsibilities
Terminals and carriers also have significant responsibilities in ensuring VGM compliance and maintaining safety standards. Terminals must have the necessary facilities, such as weighing bridges or scales, to receive VGM information and integrate it into their systems. They are responsible for verifying the completeness and accuracy of VGM data received from shippers or carriers. Carriers, on the other hand, should provide clear guidelines and deadlines for VGM submission, collaborate with terminals to ensure efficient VGM processing, and communicate any changes or updates to shippers promptly. Collaboration and coordination among all stakeholders involved are crucial to achieving seamless VGM compliance.
Benefits and Impacts of VGM

The implementation of VGM regulations brings several benefits and impacts to the shipping industry. Firstly, it enhances safety at sea by reducing the risks associated with overweight containers and ensuring proper stowage and stability calculations. VGM requirements also promote transparency and trust among shippers, carriers, and port terminals, as accurate weight reporting contributes to the smooth flow of operations. From a logistical perspective, VGM compliance leads to more efficient cargo planning, reduced delays, and improved vessel utilization. While the introduction of VGM may involve adjustments and additional efforts, the long-term benefits in terms of safety, efficiency, and regulatory compliance outweigh the initial challenges.
Verified Gross Mass (VGM) is an essential requirement in the shipping industry aimed at enhancing maritime safety and improving the efficiency of container transportation. The accurate reporting of container weights through VGM helps prevent accidents, ensures proper stowage, and maintains the stability of ships at sea. Shippers, carriers, and port terminals all have crucial responsibilities in complying with VGM regulations to maintain the integrity of the supply chain and safeguard all stakeholders involved. By understanding the significance of VGM and adhering to its requirements, the shipping industry can continue to operate smoothly and safely, ensuring the timely and secure delivery of goods worldwide.
Related FAQs
What is the consequence of not providing VGM information on time?
Failure to provide VGM information before the deadline set by the carrier can result in the container being denied loading onto the vessel. This can lead to additional costs, such as storage and demurrage charges.
Can the VGM be modified after submission?
The possibility of modifying VGM data depends on the carrier’s policies. Generally, modifications are allowed before the VGM deadline, but after the deadline, changes may incur additional charges or may not be accepted.
Are there any exemptions to providing VGM?
Certain containers, such as those carried on ro-ro ships on short international voyages or offshore containers not subject to the International Convention for Safe Containers (CSC), may be exempted from VGM requirements. However, it is essential to consult specific regulations and guidelines to determine eligibility for exemptions.
What happens if the VGM data differs from the weighed container at the terminal?
In such cases, the weight determined by the terminal will prevail, and the terminal’s measurement will be considered the final result.
How does VGM contribute to maritime safety?
VGM ensures accurate weight reporting, which is crucial for maintaining the stability of ships at sea. It helps prevent accidents, container stack collapses, and potential risks to seafarers, cargo, and vessels.



