According to current Load Line Regulations, which condition must the Master be provided with for arrival and departure?

The requirement that the Master be provided with the lightship condition, ballast condition, and summer load line loading is necessary for ensuring the safety and stability of the vessel during arrival and departure. Each of these conditions provides critical information to the Master regarding the vessel's stability and trim.

The lightship condition indicates the weight of the vessel without any cargo, fuel, or stores. Understanding this helps in calculating the baseline stability and how the vessel will behave when loaded.

The ballast condition is vital because ballast is used to lower the center of gravity and improve the vessel's stability, especially when the ship is otherwise empty or lightly loaded. Knowing this condition allows the Master to make informed decisions about loading and unloading operations.

The summer load line loading condition gives the Master insight into the maximum allowable load (including cargo, fuel, and water) during the summer months when the ship is operating in warmer waters. This ensures compliance with load line regulations and helps prevent overloading, which could adversely affect stability.

Together, these three conditions provide a comprehensive understanding of the vessel's stability characteristics in various loading scenarios, which is essential for safe navigation and compliance with international maritime regulations.