Verified Gross mass (VGM)

Beginning July 1, 2016, the International Maritime Organization (IMO) implemented the Safety of Life at Sea (SOLAS) regulation, requiring shippers to declare the Verified Gross Mass (VGM) of all loaded containers before export, either as part of the shipping instruction or in a separate communication, before vessel loading.

The regulation was adopted to improve maritime safety and reduce risks associated with ocean freight transport.

Calculating Verified Gross Mass

Verified Gross Mass (VGM) is the combined weight of the cargo including dunnage and bracing plus the tare weight of its container.

Methods of verifying gross mass

The shipper is obliged to verify the gross mass of the containers carrying their cargo by either of two permissible weighing methods before these containers can be loaded on a vessel. All weighing equipment and devices used must meet the applicable accuracy standards and requirements of the state in which the equipment is being used, per IMO Guidelines.

Method 1:

Weighing the container after the cargo has been packed. The shipper may weigh the packed container by using calibrated and certified equipment.

Method 2:

Weighing all the cargo and contents of the container and summing that weight with the container’s tare weight, indicated on the door end of the container.

Ready to submit your VGM?

Easily submit it through our E-Sea portal