Chart correction 51/21 — chart 11507
★11507 36Ed. 05/01/15 LAST NM 49/21 51/21 (Side A, XX-YY) Relocate Buoy "36" from 32°04′31.7″N 80°58′14.1″W to 32°04′29.5″N 80°58′18.5″W (Side A, WW-XX) Relocate Buoy "36" from 32°04′31.7″N 80°58′14.1″W to 32°04′29.5″N 80°58′18.5″W (44/21 CG7)
Source: NGA U.S. Notice to Mariners · edition: 36Ed. 05/01/15
Reference information — always verify against official Notices to Mariners before navigation.