Matson vessels adhere to strict procedures to reduce the potential for introduction of aquatic invasive species. These procedures are prescribed by IMO, USCG, and state requirements. While most modern container ships need to discharge ballast water in port infrequently, steps are taken to reduce the risk of invasive species introduction when discharges must occur.  New technology treatment systems that disinfect ballast water prior to discharge have become available, and we are testing one such system for adoption across the Matson fleet.