Chart correction N2/21 — chart 44430
44430 4Ed. 5/30/15 LAST NM N51/20 N2/21 Change Legend “Area No 357” to “Area No 358” 54°45.6′N 19°44.5′E Legend “Area No 357” to “Area No 358” 54°41.4′N 19°40.8′E (See N17/20) Add Depth 12 meters, blue tint and enclosing depth contour (20-meter) centered 56°29.7′N 18°20.5′E (47-48(607)20 Gdynia; 714(13132)18 Norrkoping)
Source: NGA U.S. Notice to Mariners · edition: 4Ed. 5/30/15
Reference information — always verify against official Notices to Mariners before navigation.