Chart correction N31/21 — chart 94122
94122 8Ed. 6/27/09 LAST NM N30/21 N31/21 (Plan B) Change Light to Fl R 3s 22m 11M 23°58′10.6″N 121°37′40.8″E Light to Fl R 3s 23°59′52.6″N 121°38′16.8″E Light to FR 23°59′34.1″N 121°38′11.2″E (See N5, N6/21) Add Light Fl G 2s 23°59′53.4″N 121°38′17.4″E (Plan D) Change Period of light to 3s 23°58′11″N 121°37′41″E (25(2541)21 Taunton)
Source: NGA U.S. Notice to Mariners · edition: 8Ed. 6/27/09
Reference information — always verify against official Notices to Mariners before navigation.