Before you go buying containers, you have to decide what you want them for. Are you planning to ship goods in the containers? If so, you need CSC – Convention for Safe Containers – certification testifying that the containers? is still suitable for safe handling and transportation in a commercial inter-modal transport environment. What this means is that the container should still be sturdy enough to withstand the rigors of being moved about from trucks to railcars to ships and back to railcars and trucks till it reaches its destination.