USCG Approved Alternate Management Systems for Ballast Water Treatment


The U.S. Coast Guard recently announced its acceptance of nine ballast water treatment systems as Alternate Management Systems (AMS). Some of those BWTS manufacturers include Hyde, Alfa Laval and Severn Trent.


Alternate Management Systems are the USCG’s temporary designation for BWT systems that are / have been approved by another flag state according to IMO Ballast Water Management Convention Regulations.


April 16, 2013 – News Release on AMS acceptance from the United States Coast Guard – read it here.


An Alternate Management System may be used to meet the USCG ballast water treatment requirements for up to five years after the specific ship’s ballast water discharge standard compliance date.  This five-year timeframe allows for the completion of required land-based and shipboard testing.


The ballast water treatment systems (BWTS) listed in the table above have been accepted for use in U.S. waters as Alternate Management Systems (AMS). Use of a BWTS as an AMS is subject to the general and specific conditions and requirements listed in the AMS acceptance letter issued to the system’s manufacturer.

alternative management systems approved by USCG

USCG Accepted Alternate Management Systems, 15 April 2013

To speak with Boksa Marine Design about marine engineering solutions to help your organization meet USCG and IMO ballast water treatment regulations, please contact us at 813-654-9800.


Boksa Marine Design is located near Tampa, Florida and provides engineering and naval architecture services to clients within the United States as well as around the world.


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