Ballast Water Treatment System Compliance Challenges and Solutions for Ship Operators

Over 30% of ballast water treatment systems fail Port State Control D-2 compliance inspections, despite passing commissioning tests. Global TestNet data revealed that 29% to 44% of operational systems are failing to remove invasive species, with over 100 organisms found in every 1m3 of treated water. Non-compliance reasons include contamination, regrowth, and human error.

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Over 30% of Ballast Water Treatment Systems Fail Compliance Inspections

A recent analysis revealed that over 30% of ballast water treatment systems fail Port State inspections despite passing initial tests. Issues with maintenance, record-keeping, and crew training were highlighted, with new requirements coming in 2025. Many systems are failing to remove invasive species, leading to detentions and delays for non-compliant vessels.

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