Transporting unconventionally shaped machinery and oversized construction equipment requires strict adherence to Verified Gross Mass (VGM) regulations to ensure maritime safety.
Verified Gross Mass (VGM) Requirements
VGM is the total weight of a packed container, calculated as :
VGM = (Cargo Weight + Packing Materials/Dunnage/Bracing) + Container Tare Weight.
Per IMO SOLAS (Safety of Life at Sea) regulations, the shipper is responsible for providing the VGM to the ocean carrier and terminal representative before the container can be loaded.
Permissible Weighing Methods
Shippers must use one of two methods to verify mass using equipment that meets the accuracy standards of the state where weighing occurs :
Method 1 : Weighing the Packed Container
- The container is weighed after it is fully packed and sealed.
- This is often done using a certified weighbridge or lifting equipment at port terminals or external facilities.
- If a truck is used, its weight and fuel must be subtracted from the total to isolate the container's VGM.
Method 2 : Summing Individual Weights
- Calculate the sum of the weight of all cargo items, primary and secondary packaging, pallets, dunnage, and securing materials.
- Add this total to the container’s tare weight, which is typically found on the CSC Plate on the container door.
- Note:This method may be impractical for bulk commodities like scrap or grain and may require specific permission from local authorities.
Compliance and Documentation
- Accuracy : Estimating weights is prohibited; all equipment must be calibrated and certified.
- Submission : Shippers should submit VGM through our ecommerce portal.
- Consequences : Failure to provide VGM by the cut-off results in the container being denied loading, potential fines, and storage fees.