I know that containers are loaded in all manner of ways and in all manner of locations. In a previous life, I worked on a walnut farm. I've seen these big sea containers loaded with raw walnuts. They are closed, and then they are shipped off. Yes, they are tagged. There's a manifest to say that, yes, this container is full of walnuts. That container, once it has been sealed, is then in the hands of a number of different actors to get it from where it was loaded to the port and then onto a ship.
What kind of liability does a transport company, like CN Rail or a trucking company, have or their drivers or railway operators have to ensure that what they're carrying is what's on the manifest?