In the alphabet soup that is EEXI, CII and SEEMP, it is hard to know where to start to discern the essential ingredients.

So, let’s use a human illustration.

The Energy Efficiency Existing Ship Index (EEXI) is like a basic medical that I need to pass to get a job. It purports to prove I am healthy at this point, but just shows I am not at death’s door. Having passed EEXI and got the job, I don’t need to do the test again, even if I fall ill next year.