Exam Question

### (a) Energy Efficiency Existing Ship Index (EEXI) Overview & Implementation
#### Definition and Purpose
The Energy Efficiency Existing Ship Index (EEXI) is a mandatory technical measure introduced by the International Maritime Organization (IMO) under MARPOL Annex VI, aimed at reducing the carbon intensity of the existing global shipping fleet. It is a retroactive application of the principles of the Energy Efficiency Design Index (EEDI), which applies to newbuilds, to ships already in service.
Its primary purpose is to establish a minimum energy efficiency standard for existing ships. The EEXI is a one-time certification that compares a ship's calculated technical energy efficiency against a required standard for its specific type and size. If a vessel fails to meet this standard, it must implement technical modifications to improve its energy efficiency.