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- Q183 - Navigation General: Oceans
60. ECDIS units incorporate Digital Chart Data that utilizes which formats?
ECDIS units utilize both vector (ENC) and raster (RNC) digital chart formats, as mandated by IMO standards and IHO chart definitions. ECDIS is approved to use ENCs as primary data and may operate with RNCs when ENCs are unavailable, requiring compatibility with both formats.
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