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  1. Each tab shows the outlines of charts or publication that are available. Changing the area of the map changes the charts that are displayed. Zooming in will show you charts that cover a smaller area. Clicking on the map will highlight the smallest scale chart.

  2. Learn about NOAA's nautical charts, which delineate the shoreline and display important navigational information. Find out how to access, download, and customize electronic navigational charts (ENCs), the primary NOAA chart product for marine navigation.

  3. NOAA's Office of Coast Survey. We are the nation's nautical chart-maker. We are responsible for upgrading charts, surveying the seafloor, responding to maritime emergencies, and searching for underwater obstructions that pose a danger to navigation.

  4. Learn how to access and use free PDF versions of NOAA nautical charts, which are digital images of traditional paper charts. Find out about other new and enhanced navigational products and services from NOAA's Office of Coast Survey.

  5. Canadian Hydrographic Service (CHS)'s nautical charts help ensure the safe navigation of Canada's waterways. Browse our catalogue of over 2,000 nautical charts using the links below.

  6. Learn about the four raster chart formats offered by NOAA, including paper nautical charts, full-size nautical charts, booklet charts, and raster navigational charts. Find out how to obtain, update, and use these charts for navigation and other purposes.