Chart correction N31/21 — chart 37164

37164 6Ed. 8/31/13 LAST NM N29/21 N31/21 Add Platform (lighted) “HZB” [L2] Mo(U) W 15s HORN, enclosed by purple composite-line circle, radius 500 meters, centered 52°15′28″N 4°05′05″E Platform (lighted) “HZA” [L2] HORN, enclosed by purple composite-line circle, radius 500 meters, centered 52°19′10″N 4°02′35″E (26(225)21 Den Haag)

Source: NGA U.S. Notice to Mariners · edition: 6Ed. 8/31/13

Reference information — always verify against official Notices to Mariners before navigation.