Tokyo – Leading classification society ClassNK released “PrimeShip-GREEN/ProSTA ver.ITTC” on 1st November 2018. It is the world’s first software that calculates and analyzes a ship’s speed for Energy Efficiency Design Index (EEDI) calculation in compliance with the latest International Towing Tank Conference (ITTC) 2017 Guidelines (ITTC Recommended Procedures and Guidelines 7.5-04-01-01.1, Preparation, Conduct and Analysis of Speed/Power Trials; 2017) for EEDI verification.
MARPOL Annex VI...
http://www.allaboutshipping.co.uk/2018/11/01/classnk-releases-primeship-greenprosta-ver-ittc/