Recent findings from the Concentrated Inspection Campaign (CIC) on the Ballast Water Management Convention (BWM), conducted jointly by the Tokyo MoU and Paris MoU between September and November 2025, have brought renewed attention to ballast water management system (BWMS) compliance.
The campaign identified several cases where vessel piping and valve arrangements could potentially allow ballast water to bypass the treatment system without activating an alarm. As a result, deficiencies were recorded during inspections, and in some cases vessels were detained.
Why Is This Important?
Ballast water treatment systems play a critical role in protecting marine ecosystems by ensuring that ballast water is properly treated before being discharged into the sea.
Recent inspections have highlighted that compliance is no longer assessed solely on the performance of the treatment equipment itself. Increasingly, authorities are evaluating the integrity of the entire ballast water management process, including valve arrangements, operational procedures, and crew awareness.
In simple terms, if there is a possibility for untreated ballast water to bypass the treatment system, even unintentionally, this may be considered a compliance risk.
What Did PSC Inspections Identify?
According to the preliminary findings of the campaign, inspectors identified situations where:
- Certain valve configurations could allow untreated ballast water to flow through the system.
- Some arrangements did not provide alarms or safeguards when bypass scenarios occurred.
A Changing Regulatory Landscape
The direction of future regulatory developments suggests increased attention on the wider ballast water management arrangement, including piping systems, valves, pumps, operational controls, and crew procedures.
For shipowners and operators, this means that maintaining compliance will require a more comprehensive view of ballast water operations across the vessel.
ERMA TECH GROUP’s Compliance Philosophy
ERMA TECH GROUP has long recognized the importance of a holistic approach to ballast water management.
Rather than focusing solely on equipment performance, ERMA TECH GROUP’s ballast water treatment systems are designed to support the integrity of the overall ballast water management process.
The system continuously monitors ballast water operations and supervises valve configurations that may create potential bypass scenarios. It verifies that the required operating conditions are maintained throughout ballasting and deballasting operations, including when the system is in standby mode.
If an unintended or unauthorized valve arrangement is detected, the system automatically triggers and records a critical alarm. This helps operators maintain operational transparency while supporting inspection readiness and regulatory compliance.
What Should Operators Do Next?
As regulatory expectations continue to evolve, operators are encouraged to review their ballast water management arrangements and procedures.
Key actions may include:
- Reviewing vessel configurations to identify potential bypass paths.
- Verifying alarm coverage and operational safeguards.
- Updating Ballast Water Management Plans (BWMPs) where necessary.
- Strengthening crew awareness and training.
- Implementing additional operational controls and mitigation measures when required.
Taking proactive steps today can help reduce compliance risks and improve preparedness for future inspections.
Supporting Compliance in a Changing Environment
The latest inspection findings reinforce a clear industry message: any potential BWMS bypass path, even outside the traditional system boundary, may represent a compliance risk.
Through its holistic compliance philosophy, ERMA TECH GROUP continues to support shipowners and operators in navigating evolving regulatory expectations while promoting safe, transparent, and environmentally responsible ballast water management practices.