Chart correction N40/20 — chart 53203
53203 12Ed. 2/23/13 LAST NM N35/20 N40/20 Add Buoy (waverider) Y, pillar, Fl Y 2s [Q130.6] enclosed by purple composite-line circle, radius 200 meters, centered 36°04′53″N 14°16′53″E (36/20 Valletta)
Source: NGA U.S. Notice to Mariners · edition: 12Ed. 2/23/13
Reference information — always verify against official Notices to Mariners before navigation.