The international framework for maritime search and rescue relies on state actors establishing regions of responsibility supported by private shipmasters acting in compliance with traditional duties to rescue persons in distress at sea. Despite revisions to the framework's foundational treaty, questions persist about the extent of state responsibilities and the interaction between those responsibilities and international human rights law. Over the past three years, non-governmental organizations (NGOs) have provided signifi cant support to the efforts of sovereign actors responding to the migration crisis in the Central Mediterranean. Regional governments and civil society initially praised NGO operations, but in recent months these groups have come to criticize and challenge such operations. Italian authorities have threatened criminal prosecution of NGO deployers and proposed closing national ports to them. Libyan authorities have harassed NGO vessels and sought to exclude them from international waters. These actions are consistent with non-entrée strategies employed by Mediterranean states in recent years, but are in certain cases of questionable legality. Although controlling irregular migration is properly the responsibility of state actors, recent policies are inconsistent with principles of rule of law and good governance.
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