The USCG Marine Safety Center will review the application for compliance with USCG regulations in 46 CFR 162.060. Once it has been determined that the application meets the requirements, the Center will issue a type approval certificate.

So far, Semb-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 and Elite Marine 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: