1. Nautical notices are warnings, reminders and suggestions, and corrective notices must be implemented.
2. Nautical Notices refer to documents that report the changes of navigation marks, obstacles and the publication of nautical books in this sea area, and are used to correct the effective and important navigational warnings that will be included in charts, nautical books and HNA Notices; The Notice of Correction is the basic guarantee and mandatory requirement for navigation safety.
Introduction of navigation notice:
Notice to seafarers; ; NM) refers to the documents that report the changes of navigation marks and obstacles and the publication of nautical books in this sea area. It is published once a week to correct charts and nautical books. HNA notices will include those navigational warnings that are still valid and important.
The contents include the setting, alteration and abolition of navigation AIDS, the discovery and elimination of various dangerous objects and obstacles, the expansion and alteration of harbor terminals, various boundaries, navigation regulations, navigation warnings, navigation regulations and other provisions to ensure navigation safety. In addition, there are also the publication, revision and abolition of navigation books. It is the basis for correcting charts, nautical guides and other nautical books.
Brief introduction of correction notice:
Correction notice refers to the correction of inappropriate information on the chart according to navigational notices or radio navigational warnings. Nautical notices are the main basis for chart correction. Chart correction should be carried out after the publication of the chart, and the chart should be corrected by the organization before sale (except for temporary notice) and corrected by the user after purchase.