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Routing systems are systems of predetermined routes and related measures that are \u201crecommended for use by, and may be made mandatory for, all ships, certain categories of ships or ships carrying certain cargoes when adopted and implemented in accordance with the guidelines and criteria developed by the [IMO]\u201d and are designed to \u201ccontribute to the safety of life at sea, safety and efficiency of navigation, or protection of the marine environment.\u201d (Safety of Life at Sea, Chapter V, reg. 10, para. 1)This item is curated by the Marine Cadastre team. Find more information at the Marine Cadastre: https://hub.marinecadastre.gov .Additional Marine Cadastre notes:1) Area To Be Avoided2) Precautionary Area3) Separation Zone4) Traffic Lane5) Two-Way Route6) Fairway7) Recommended Route8) Particularly Sensitive Sea Areasee - https://www.gc.noaa.gov/pdfs/IMO%20Area-Based%20ProtectiveMeasures.GCIS.FINAL%204-20-2020.pdfData Use Constraints: For coastal and ocean planning. Not for navigation.NOTE: This data layer was originally published by the Marine Cadastre; this web service was published 'as is' by the Portal for visualization purposes. 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