Tag: MPN method

Discussions are currently ongoing with US Authorities to find a way for the USCG to accept the MPN method, and DESMI expects a conclusion on these discussions before the end of 2016. If the discussions end with an acceptance of the MPN method, DESMI expects to receive USCG type approval for the RayClean ballast water treatment system in Q1 2017.

The Coast Guard Marine Safety Center (MSC) has denied requests from four ballast water treatment system manufacturers to use an alternative testing method for Coast Guard type approval of their ultra-violet (UV) based ballast water management systems (BWMS).

The Government Of Canada has issued statement about its position on the MPN Method, responding to Water Canada’s inquiry.

The Chamber of Shipping of America has issued a letter commenting USCG's recent decision to reject the MPN method

The USCG’s recent announcement about the MPN method has far reached implications to the marine industry, particularly for shipowners. A new website has been launched by a group of concerned organizations to help educate and dispel any misunderstandings about the MPN method.

USCG announced that Most Probable Number 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

USCG addresses the confusion about using living or viable terminology in the standard and discusses the challenges with determining viability.