CSP is a shortcut for --->'Communications Service Provider' or for "Container Securing Point".

A Container Securing Point is a structural point on a ship, where a container can be safely secured with twistlocks during transportation.

Examples of CSPs include corner castings and mid-lock positions on the deck of a ship, as well as the cell guides in the cargo hold. These points are designed to provide a secure location for containers to be locked into place and prevent them from shifting during transport.

In addition to container ships, CSPs can also be found on other types of vessels such as container barges, ro-ro vessels, and containerized cargo ships. The use of CSPs is essential in ensuring the safe and efficient transport of cargo by sea.

It is worth noting that CSP can also stand for "Cargo Securing Point," which refers to any point on a ship or other vehicle that is suitable for securing cargo during transport.