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NP5012 is a guide to the Electronic Navigational Chart (ENC) symbols portrayed in Electronic Chart Display and Information Systems (ECDIS). The factors affecting the portrayal of ENC symbols in ECDIS are also explained. More comprehensive guidance and background is available in the United Kingdom Hydrographic Office's Admiralty Guide to the Practical Use of ENCs (NP231)
In addition to paper format, this ADMIRALTY publication is available as ADMIRALTY e-Nautical Publications (AENP). AENPs bring improved efficiency, accuracy and access to information bridge crews need through electronic updating and simple search functionality. (Please Note: Admiralty e-NPs are not downloaded directly from the site. All e-NPs need to be assigned once it has been purchased.)
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