Chart correction N21/23 — chart 93733

93733  15Ed.  07/31/21  LAST  NM  N18/23  N21/23 Delete Purple heavy dashed line (routing measure limit) between   22°15′50″N  114°05′00″E   22°11′23″N  113°58′00″E Purple heavy dashed line (routing measure limit) between   22°10′47″N  113°58′00″E   22°15′36″N  114°05′24″E Purple tint line (traffic separation line) between   22°11′05″N  113°58′00″E   22°15′43″N  114°05′12″E Open-outlined arrow symbol   22°13′49″N  114°04′09″E Open-outlined arrow symbol   22°13′41″N  114°04′26″E Open-outlined arrow symbol   22°11′24″N  114°01′22″E Open-outlined arrow symbol   22°11′04″N  114°01′28″E Radio reporting point symbol   22°11′36″N  114°03′30″E Radio reporting point symbol   22°11′51″N  114°03′14″E Add Submarine pipeline [L40.1] joining   22°12′23″N  114°05′57″E   22°10′56″N  114°04′40″E   22°10′36″N  114°04′11″E   22°10′27″N  114°03′33″E   22°10′23″N  113°59′41″E   22°10′39″N  113°58′32″E   22°10′29″N  113°58′00″E Anchorage area [N12.1] with legend "South Cheung Chau Anchorage" bound by purple dashed line joining   22°10′04″N  114°03′49″E   22°09′18″N  114°03′49″E   22°09′18″N  114°02′20″E   22°10′04″N  114°02′20″E Pilot station symbol [T1.1]   22°09′40″N  114°03′03″E Purple heavy dashed line (fairway area) [M18] joining   22°15′50″N  114°05′00″E   22°11′04″N  114°02′54″E   22°11′04″N  113°58′00″E Purple heavy dashed line (fairway area) [M18] joining   22°10′26″N  113°58′00″E   22°10′25″N  114°03′07″E   22°15′36″N  114°05′24″E Legend "West Lamma Fairway"   22°13′04″N  114°04′05″E Add Legend "South Shek Kwu Chau Fairway"   22°10′40″N  113°59′45″E Radio reporting point symbol [M40.1] with direction pointers 022°-270°   22°10′45″N  114°03′00″E (9(15)23 Hong Kong)

Source: NGA U.S. Notice to Mariners · edition: 15Ed. 07/31/21

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