The treatment principle of the KURITA BWMS is based on chemical injection at intake and neutralization at discharge. This approval covers seven models with maximum treatment rated capacities between 375 and 3,750 m3/h.

So far, Knutsen Ballast Water ASSemb-Eco Pte, Ltd., Miura HK-(E)RHANLA IMS Co., Ltd., Miura Co., Ltd., Hyundai Heavy Industries Co.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, Cathelco Ltd., Miura Co. Ltd., BAWAT A/S, NKBMS Co. Ltd, Techcross, Inc., Kuraray Co., Ltd., oneTank, LLC, Elite Marine, Panasonic Environmental Systems & Engineering Co., Ltd. and Alfa Laval Tumba AB have won the USCG type approval.

Here is a complete list of ballast water treatment systems approved or with type approval applications currently under review: