Loss Prevention 15 Dec, 2022 Maritime Regulations Becoming Mandatory In 2023 Emma Forbes-Gearey Loss Prevention Officer The key regulations that have been highlighted for 2023 are for targeting the ship's efficiency and carbon emissions.  Download PDF These regulations aim to reduce the carbon emissions for existing and new ships, using energy efficiency indicators to determine these levels. The measures consist of the following: The Energy Efficiency Existing Ship Index (EEXI) The Carbon Intensity Indicator (CII) rating scheme These mandatory regulations will be effective by 1st January 2023. Below is a brief overview of the two main IMO 2023 regulations coming into force this January: Energy Efficiency Existing Ship Index (EEXI) The Energy Efficiency Design Index (EEDI) is already in place for new builds. However, the EEXI is aimed at existing ships. EEXI consists of a rating system that analyses the energy performance of existing ships based on data regarding their energy consumption and other key inputs such as power, engine size, and speed. The EEXI is not based on its actual operating performance but on its specifications. Vessels receiving an EEXI below the minimum standard may be penalised and restricted. This could also result in the need to modify systems or engines. Carbon Intensity Indicator (CII) Rating Scheme The shipping carbon intensity indicator is a scheme used to monitor and rank the efficiency of ships and applies to all cargo, RoPax and cruise ships above 5,000 GT. It is calculated through a ratio that links the Greenhouse Gas (GHG) emissions to the distance travelled to the amount of cargo carried. Vessels are given an annual rating ranging from A to E, A meaning good to E, which is poor. If a vessel receives a D grade for three consecutive years or an E for one year, they need to implement a corrective action plan. Apart from regulations on carbon emissions, other significant safety and environmental regulation requirements that the IMO w