The Chinese container freighter "CSCL Star" belongs to the class of Ultra Large Container Ships (ULCS) and is one of the largest ships that can enter the port of Hamburg.
Each pilot association and each country can get a good overview of how other colleagues approach safety.
Ship crews can see which rules apply in which country.
In any case, this list from IMPA is worth looking through and reading.
From the author: "This is a special video about the transit through the infamous Panama canal. It took me quite some time to make this video. I tried to show as much as I could about the Panama canal and its pilotage waters."