Maritime glossary · BWM
Ballast Water Management
The regime requiring ships to treat ballast water before discharge to stop the spread of invasive species.
Definition
Ballast water keeps an empty ship stable, but pumping it across the world moves marine organisms between ecosystems. The IMO Ballast Water Management Convention, in force since 2017, requires ships to manage and progressively treat ballast water to an agreed biological standard, normally with an approved treatment system. Retrofitting these systems across the fleet has been a major source of dry-dock and equipment demand.
How Vessel Hunter uses Ballast Water Management
Ballast water and other retrofit mandates open service windows. Vessel Hunter flags the affected tonnage to yards and equipment suppliers ahead of the deadline.
Related terms
- MARPOLMarine Pollution Convention
The IMO convention preventing pollution from ships: oil, chemicals, garbage, sewage, air emissions, sulphur.
- Ballast Voyage
A leg sailed with no cargo, carrying ballast water for stability, on the way to the next load port.
- Classification Society
An independent body that certifies a vessel’s structural integrity, machinery, and equipment against published rules.
- PSCPort State Control
Inspections of foreign-flagged vessels in a port’s waters, run under regional MoUs to enforce international maritime conventions.
The bigger picture
Ballast Water Management is one piece of the commercial maritime picture Vessel Hunter pulls together for shipyards, suppliers, service providers, and port agents. Every vessel record bundles AIS, ownership, inspections, dry-dock history, casualty record, classification status, and a verified contact for the operator decision-maker behind the ship, so the team that reaches out first wins the work.
Continue reading: full maritime glossary · every Vessel Hunter feature.