IMO issues guidelines for managing anti-fouling waste

The International Maritime Organization has issued comprehensive guidelines (AFS.3/Circ.6) for the handling and disposal of waste generated during anti-fouling systems (AFS) maintenance and cleaning. These guidelines aim to mitigate the environmental impact of anti-fouling practices, especially regarding the contamination of marine environments, and to ensure that waste is handled responsibly throughout the process.

According to the IMO's guidelines, different types of AFS waste must be collected and stored separately in containers specifically designated for each waste type. Once the work is completed, these waste containers should be removed and transported to specialized facilities for further treatment. The guidelines clearly state that waste should not be disposed of by washing it with water, brushing it into the environment, or burying it. Likewise, incineration or permanent storage of such waste at the facility is strictly prohibited to avoid further environmental contamination.

Wastewater contaminated with hull coating materials is another significant concern. The IMO recommends that such wastewater be stored separately from other liquids in closed containers until it can be properly treated. Before treatment, the wastewater should be left standing to allow suspended particles to settle, thus separating the contaminated particles from the water. Once treated, the wastewater should comply with predefined environmental