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It requests mariners to promptly report new dangers, changes or defects in aids to navigation, and shortcomings in affected charts and publications. The document explains the notice origins and roles, and offers subscription and communication contacts for relevant chart centers and Maritime Safety Administration offices, including email and phone numbers.",{"@graph":63,"@context":112},[64,80,95],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":36,"@type":70,"position":76},"https://docshare.wps.com/template/forms/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/notices-to-mariners-issue-no-19-notice-no-531-544-11-may-2026/564270/",4,{"url":78,"name":59,"@type":81,"author":82,"headline":59,"publisher":85,"fileFormat":88,"inLanguage":57,"description":61,"dateModified":89,"datePublished":89,"encodingFormat":88,"isAccessibleForFree":90,"interactionStatistic":91},"DigitalDocument",{"name":83,"@type":84},"noah","Person",{"url":68,"name":86,"@type":87},"DocShare","Organization","application/pdf","2026-10-12",true,{"@type":92,"interactionType":93,"userInteractionCount":4},"InteractionCounter",{"@type":94},"ViewAction",{"@type":96,"mainEntity":97},"FAQPage",[98,104,108],{"name":99,"@type":100,"acceptedAnswer":101},"What does this Notices to Mariners issue focus on?","Question",{"text":102,"@type":103},"It focuses on essential changes in Chinese coastal sea areas and works at sea, used to correct Chinese coastal port and fairway charts and provide navigation safety information.","Answer",{"name":105,"@type":100,"acceptedAnswer":106},"What should mariners do when they discover new hazards or chart shortcomings?",{"text":107,"@type":103},"Mariners should immediately inform the China MSA about new dangers, changes or defects in aids to navigation, and shortcomings in Chinese coastal port and fairway charts or publications.",{"name":109,"@type":100,"acceptedAnswer":110},"How are different sections (Sailing Bulletin, Notices to Mariners, Temporary Notices) used?",{"text":111,"@type":103},"The Sailing Bulletin announces navigation rules and publication corrections but does not correct charts; Notices to Mariners provide updates so users can correct related charts; Temporary Notices cover temporary establishment/cancellation/variations and list chart numbers for detail lookup.","https://schema.org",{"og:url":78,"og:type":114,"og:title":59,"og:site_name":86,"og:description":61},"article",{"robots":116,"canonical":78},"index,follow",{"doc_id":118,"site_id":56},564270,1791841203,{"code":4,"msg":5,"data":121},{"doc_id":118,"user_id":122,"nickname":83,"user_avatar":123,"doc_module":9,"category_id":35,"category_name":36,"doc_title":59,"doc_description":61,"doc_content":124,"file_id":125,"file_url":126,"file_type":127,"file_size":128,"view_count":4,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":20,"language":129,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":130,"faqs":131,"seo_title":132,"seo_description":61,"update_tm":119,"read_time":47},1099529839121,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","NOTICES TO MARINERS  \nIssue No.19（Total No. 1283）  \nNotice No.531-544 11 May 2026  \nCONTENTS  \nI Sailing Bulletin Ⅱ Index Ⅲ Notices to Mariners Ⅳ Temporary Notices  \nIn order to keep navigation safety and make Chinese coastal port and fairway Charts modify timely and accurate⁃ ly, mariners are requested to inform the china MSA immediately of the discovery of new danger, or changes or defects in aids to navigation and of shortcomings in Chinese coastal port and fairway charts or publications. Copies of Naviga⁃ tional warning, Sailing information, and Dynamic aids condition should be sent to Tianjin, Shanghai and Guangdong MSA timely. Departments and mariners may contact Shanghai Nautical Chart Center or Tianjin, Shanghai and Guang⁃ dong MSA to get subscribing information. The Notices to Mariners can also be made through the following websites.  \nIn addition to postal methods, the following additional communication facilities are available: Tianjin MSA Survey and Mapping Office: E-mail: [hcdd@tjmsa.gov.cn](hcdd@tjmsa.gov.cn)  \nPhone: +86（0）22 58873986 Fax: +86（0）22 58873988  \nShanghai Nautical Chart Center: E-mail: [gztg@shchart.cn](gztg@shchart.cn)  \nPhone: +86（0）21 65806561,65806386 Fax: +86（0）21 65697997  \nGuangdong MSA Survey and Mapping Office: E-mail: [hcmail@gdmsa.gov.cn](hcmail@gdmsa.gov.cn)  \nPhone: +86（0）20 89320335 Fax: +86（0）20 89320336  \nChina MSA Nautical Charts&Books Publisher: [Web: www.chart.msa.gov.cn](Web: www.chart.msa.gov.cn)  \nThe Maritime Safety Administration of the People′s Republic of China  \nExplanatory Notes  \n1. The Notices which publish the information about essential changing feature of Chinese coastal sea area and works at sea, is mainly used to correct the Chinese coastal port and fairway Charts and offer navigation safety information for mariners.  \n2. The information published in the notice origins from the marine information, the navigational warning, aids dynamics as well as the hydrographic achievements, which are issued by Maritime Administration. The additional source comes from shipping, fairway, sea, Harbour affairs, and fishing politics department.  \n3. The Notices include the Sailing Bulletin, the Notices to Mariners and Temporary Notices.  \na） Sailing Bulletin announces rules and regulations of navigation, the printing, correcting and cancellation of publication, and the marine information which is promulgate by MSA and has important relationship which navigation safety. It is not used to correct the Charts.  \nb） The Notices to Mariners is used for user to correct related Chinese coastal port and fairway Charts. The number in parentheses behind the Chart No. indicates that only parts of the Notices related to this chart. The number in square bracket illustrated the previous update notice information.  \nc） The Temporary Notices published for the temporary establishment,cancellation, variation as well as works at sea. The Chart No. lists for user′ s convenience when mariners look up for the details.  \n4. Geographical position refer to the horizontal datum of the current edition of each affected chart. The 2000 national geodetic coordinate system which we adopt equals to WGS-84 world geodetic coordinate system in usage. The sounding datum refers to the level of Lowest Astronomical Tide and the elevation uses 1985 national vertical datum. Bearings are true reckoned clockwise from 000° to 359° . Those relating to lights are from seaward. The height of the lighthouse or light beacon is referred to Mean High Water Springs.  \n5. Symbols which refer to GB12319-2022 used in the Notices have been effective since August 1st, 2023 .  \n6. The unit in the Notices complies with the international standard unit of measurement, with the Chinese characters replaced by symbol and alphabet, such as degrees(°), minutes(′)and seconds(″), meters（m）, kilometers（km）or nautical miles（M）.  \nSAILING BULLETIN  \n1 , Marine Information Chinese Version Only.  \nINDEX  \n1,GEOGRAPHICAL INDEX  \nBohai Sea Tangshan Port （53","cbCaidIZQLPR5LTj","https://ap.wps.com/l/cbCaidIZQLPR5LTj","pdf",262370,"English","# Notices to Mariners\n## Notices to Mariners safety update instructions\n## Explanatory notes\n## Sailing Bulletin\n## Index\n## Geographical index\n## Notices by chart (e.g., 531, 532)","[{\"question\":\"What does this Notices to Mariners issue focus on?\",\"answer\":\"It focuses on essential changes in Chinese coastal sea areas and works at sea, used to correct Chinese coastal port and fairway charts and provide navigation safety information.\"},{\"question\":\"What should mariners do when they discover new hazards or chart shortcomings?\",\"answer\":\"Mariners should immediately inform the China MSA about new dangers, changes or defects in aids to navigation, and shortcomings in Chinese coastal port and fairway charts or publications.\"},{\"question\":\"How are different sections (Sailing Bulletin, Notices to Mariners, Temporary Notices) used?\",\"answer\":\"The Sailing Bulletin announces navigation rules and publication corrections but does not correct charts; Notices to Mariners provide updates so users can correct related charts; Temporary Notices cover temporary establishment/cancellation/variations and list chart numbers for detail lookup.\"}]","NOTICES TO MARINERS - Issue No. 19 - Notice No. 531-544 - 11 May 2026 | PDF"]