The treatment principle of the EcoBallast BWMS consists of filtration with UV treatment during uptake and discharge. This approval covers models with maximum treatment rated capacities between 250 m3/h and 2,160 m3/h.

So far, COSCO Shipbuilding Industry Co., LtdAlfa Laval Tumba ABWärtsilä Water Systems, Ltd.DESMI Ocean Guard A/S (Denmark), Envirocleanse, LLC (USA), De Nora (USA), Panasia (Republic of Korea), JFE Engineering Corporation (Japan), Headway Technology (People's Republic of China), Alfa Laval (Sweden), Hyundai Heavy Industries (Korea), Wärtsilä Water Systems (England), BIO-UV Group (France) , Samsung Heavy Industries Co (Republic of Korea), Techcross (Republic of Korea), Optimarin (Norway), TeamTec Ocean Saver (Norway), Sunrui (China), Ecochlor (USA), Erma First (Greece), Alfa Laval Tumba and Cathelco Ltd. have won the USCG type approval.