GloBallast Monograph Series No.21-Identifying and Managing Risks from Organisms Carried in Ships’ Ballast Water

The objective of this document is to provide guidance on the identification and mitigation of risks presented by ships’ ballast water and sediments, as well as the consequential risks that may arise from ballast water and sediments management1 (BWM). The document supplements the guidance contained in the BWM Convention and other publications in the GloBallast Monograph Series.