The International Convention for the Control and Management of Ships’ Ballast Water and Sediments, adopted in 2004 and entering into force in 2017, represents a landmark achievement in the field of international marine environmental protection. Its primary objective is to minimize the spread of invasive alien species through ballast water discharged by ships, which can have devastating consequences for marine biodiversity, disrupt ecological balance, and inflict significant economic losses on coastal nations. The Convention obliges member states to implement effective measures to manage ballast water and sediments, thereby preventing the transfer of harmful aquatic organisms and pathogens to new environments. States parties are required to enact national legislation aligned with the Convention’s provisions, develop the necessary infrastructure, and ensure the effective monitoring and regulation of ballast water operations. These obligations include maintaining a detailed Ballast Water Record Book, adhering to specific discharge standards, and ensuring that ships are equipped with approved treatment systems. The Convention is grounded in core principles of international environmental law, particularly the precautionary principle and the principle of cooperation among states, emphasizing the need for coordinated global action to address transboundary environmental threats. Despite its significant achievements, including successful implementation in countries such as China and Australia, the Convention faces several persistent challenges. These include the prevalence of vessels operating under flags of convenience, the use of falsified registration documents, and the lack of financial and technical capacity in many developing states to fully comply with its requirements. Such obstacles have, in many instances, limited the overall effectiveness of the Convention’s implementation. This article argues that in order to enhance the Convention’s impact, greater regional cooperation must be encouraged, seafarer training should be expanded, and access to affordable and efficient treatment technologies must be improved. Additionally, oversight mechanisms for ship registration should be strengthened to combat fraudulent practices, and developing countries should receive increased financial and technical support. This research is based on a descriptive-analytical methodology, drawing on library sources, legal documents, and official publications of the International Maritime Organization.