Chart correction N40/21 — chart 52046
52046 22Ed. 9/19/15 LAST NM N26/19 N40/21 Delete Superbuoy and legend “ODAS” 36°39′35″N 4°26′37″W Add Superbuoy Y, Q(5) Y 20s AIS with legend “ODAS” [Q58] 36°39′31″N 4°26′28″W (36(279)21 Cadiz)
Source: NGA U.S. Notice to Mariners · edition: 22Ed. 9/19/15
Reference information — always verify against official Notices to Mariners before navigation.