Chart correction N29/20 — chart 94216
94216 9Ed. 8/4/12 LAST NM N27/20 N29/20 Delete Depth 6.3 meters 31°13′58″N 121°46′27″E Substitute Beacon Y, “X” topmark, Mo(C) Y 12s 7m 3M Racon (Y) AIS [Q130.6] for tide gauge symbol 31°04′03″N 122°16′02″E (See N21/20) Add Beacon Y, “X” topmark, Mo(C) Y 12s 7m 3M Racon (K) AIS [Q130.6] 31°15′58″N 122°22′40″E Beacon Y, “X” topmark, Mo(C) Y 12s 14m 3M AIS [Q130.6] 31°13′58″N 121°46′30″E Beacon Y, “X” topmark, Mo(C) Y 12s 14m 3M [Q130.6] 31°08′34″N 121°51′58″E Depth 5.1 meters 31°13′51″N 121°46′26″E (20(682-684)20 Tianjin; CHN CH 13179)
Source: NGA U.S. Notice to Mariners · edition: 9Ed. 8/4/12
Reference information — always verify against official Notices to Mariners before navigation.