What it is
The CTU Code is the joint IMO, ILO and UNECE code of practice on how to pack and secure cargo in containers, swap bodies and trailers: weight distribution, centre of gravity, blocking and lashing, and the responsibilities of the packer.
SOLAS regulation VI/2 adds the verified gross mass: since 1 July 2016 no packed container may be loaded on a ship without a VGM declared by the shipper.
Where it applies
Any country: the CTU Code is a code of practice referenced by inspectors, insurers and courts worldwide; the VGM rule binds every SOLAS flag state and every port.
What to know
- 01Distribute the load so that no more than 60 % of the cargo weight is in one half of the unit (the 60/40 rule) and the centre of gravity stays within ±5 % of the length centre.
- 02Never exceed the payload on the container’s CSC plate, nor the road limits of the countries the box crosses.
- 03Secure every piece against the forces of the sea leg: blocking, bracing, lashing, and friction alone is not enough.
- 04VGM Method 1: weigh the packed and sealed container; Method 2: sum the mass of every package, packing material and dunnage, plus the tare on the container door.
- 05The shipper named on the bill of lading is responsible for the VGM and must communicate it in time for the ship’s stowage plan.
- 06Without a VGM the terminal will not load the container — there is no exemption.
Who needs to know it
- Shippers and packers, who are responsible for what is inside and how it is secured.
- Forwarders who declare the VGM to the carrier on the shipper’s behalf.
- Air and sea students: containers and VGM are examined blocks.
An informative summary, not legal advice. Always check the current text of the rule before deciding.