As the understanding of the possible impacts of anthropogenic underwater sound has increased, so have efforts been designed to reduce the effects to marine species and habitats. Consequently, over the last decade, a large number of new policies, regulations, and joint efforts to reduce anthropogenic sound and mitigate effects to aquatic life have been introduced internationally. The United States, Canada, the EU, and many regional and multinational organizations have implemented regulations governing underwater anthropogenic sound. While habitat-centric policies have been developed internationally, difficulty in implementing these highlights the need for additional research including efforts to monitor over longer temporal scales, assess impacts to estuarine and freshwater environments, obtain baseline data where possible, and better understand impacts of chronic noise on individual fitness and population health. This paper reviews the developments in policy focused on reducing the impacts of anthropogenic impacts on aquatic habitats and makes recommendations on research efforts required to manage the impact of underwater anthropogenic sound on habitats.

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