Controlling underwater noise (March 18, 2020)

SILENT class notations from DNV GL are designed to address growing levels of noise from operations at sea…
Fish and marine mammals rely on sound to communicate with each other, locate prey and navigate over long distances. These and other vital activities are disrupted by noise from ocean-going vessels, sonar devices and offshore energy operations. Scientists have become increasingly aware of this threat to biodiversity, and some rate underwater noise pollution as the next global threat after climate change and chemical pollution.
To address these marine noise-related issues, DNV GL issued the first underwater noise notation in 2010, the SILENT class. The intention of the notation is to provide owners of acoustically sensitive vessels with concise and realistic criteria for underwater noise emission, and to provide environmentally conscious owners with an opportunity to demonstrate a low environmental footprint. – Owner – Controlling underwater noise

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