As we head into boating season, it’s a good time to make sure all your nautical charts are up to date.
While only commercial mariners are
required to have up-to-date navigational charts on board, experts agree that updated charts are critical to recreational boating safety, too.
Where can you access updates to your charts? The National Geospatial-Intelligence Agency (NGA) issues the
Notice to Mariners (NTMs)
for ocean-going vessels on a weekly basis. NTMs provide timely marine safety information for the correction of nautical charts.
Similarly, the nine district Coast Guard offices issue the
Local Notice to Mariners (LNMs)
each week, applicable to all vessels. The LNM provides timely marine safety information, including the correction of nautical charts, the United States Coast Pilot, and the United States Coast Guard lighthouse list.