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USCG Testing eATON in San Francisco Bay

The U.S. Coast Guard (USCG) said it is now testing 25 electronic aids to navigation (eATON) to augment existing physical aids and mark unique and potentially hazardous navigation features in the San Francisco Bay Area. Commonly referred to as “virtual” buoys, the eATON are being transmitted through the Coast Guard’s Nationwide Automatic Identification System (NAIS) for display on ships’ electronic charting systems and radars.