Also known as: nm.
NM has various meanings in the Chart category. Discover the full forms, definitions, and usage contexts of NM in Chart.
A periodical notice issued by maritime administrations, or other competent authorities, regarding changes in aids to navigation, dangers to navigation, important new soundings, and, in general, all such information as affects nautical charts, sailing directions, light lists and other nautical publications.
ChartUpdates to charts and sailing directions regularly published by the Australian Hydrographic Office.
ChartLast updated: