Chart correction N48/21 — chart 44401
44401 10Ed. 07/30/16 LAST NM N47/21 N48/21 Relocate Buoy "D3" from 57°03′19.0″N 24°01′44.0″E to 57°03′18.3″N 24°01′44.2″E Buoy "D5" from 57°03′12.7″N 24°01′44.6″E to 57°03′12.4″N 24°01′39.3″E Substitute Depth 3.6 meters for depth 4.2 meters 57°03′16.1″N 24°01′39.3″E (9(221)21 Riga)
Source: NGA U.S. Notice to Mariners · edition: 10Ed. 07/30/16
Reference information — always verify against official Notices to Mariners before navigation.