• In the News Posts

    USCG rules on MPN for UV BWTS

    December 14, 2015

    Today, the Coast Guard’s Marine Safety Center informed four ultraviolet ballast water management system, or BWMS, manufacturers that the Most Probable Number, or MPN, method is not considered as an equivalent alternative to the testing method prescribed in the Coast Guard’s regulations pertaining to the type approval of ballast water systems.