The Coast Guard Marine Safety Center issued the 49th U.S. Coast Guard BWMS Type Approval Certificate to Langh Tech Oy AB after a detailed review of the manufacturer’s type approval application determined the system meets the requirements of 46 CFR 162.060.
Source: USCG
Link: Marine Safety Center issues Ballast Water Management System (BWMS) Type Approval Certificate to Langh Tech Oy AB