Chart correction N15/20 — chart 97311

97311 1Ed. 5/9/13 LAST NM N14/20 N15/20 Substitute V-AIS, ball topmark [S18.5] for buoy “No 9” 33°52.7′N 132°35.7′E V-AIS, ball topmark [S18.5] for buoy “No 6” 33°42.9′N 132°13.0′E V-AIS, ball topmark [S18.5] for buoy “No 4” 33°42.4′N 132°03.4′E (44(756)18 Tokyo)

Source: NGA U.S. Notice to Mariners · edition: 1Ed. 5/9/13

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