Chart correction N40/23 — chart 37248
37248 21Ed. 09/25/21 LAST NM N35/23 N40/23 Delete Purple heavy dashed line (precautionary area limit) joining 51°27′10″N 3°32′16″E 51°27′16″N 3°31′40″E 51°27′26″N 3°31′26″E Add Purple heavy dashed line (precautionary area limit) [M16] joining 51°27′10″N 3°32′16″E 51°27′14″N 3°31′40″E 51°27′26″N 3°31′26″E (15(179)23 Oostende)
Source: NGA U.S. Notice to Mariners · edition: 21Ed. 09/25/21
Reference information — always verify against official Notices to Mariners before navigation.