Chart correction 01/22 — chart 12256

★12256 19Ed. 10/01/17 LAST NM 52/21 01/22 Relocate Buoy "21" from 36°59′57.0″N 76°17′37.4″W to 37°00′04.1″N 76°17′02.1″W (See 52/21) Substitute V-AIS "HC", ball topmark [S18.5] for buoy "HC" 37°01′19.8″N 76°08′56.6″W (47/21 CG5)

Source: NGA U.S. Notice to Mariners · edition: 19Ed. 10/01/17

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