New data for chart updates is categorized as being either "critical" or "routine." Critical data includes any changes that may pose a danger to navigation that mariners should be informed …

Select the chart prefix and suffix from the drop down lists. Please note that this service only contains NMs since the 10th of April 2003, and will only return NMs for Current Chart Editions.

The US Notice to Mariners provides timely marine safety information for the correction of all US Government navigation charts and publications from a wide variety of sources, both foreign …

Get Critical Chart Updates See the Critical Corrections that NOAA has applied to the area of your chart. Enter the chart number and print date of your chart below.

Mar 28, 2025 · NS-CU02- Chart Update Training Guide (Adobe) This guide is full of illustrations and photos of the various items that are commonly found on a Nautical Chart that have the …

OCEAN CHARTING SERVICES produces “Chartlets” — self-adhesive paper chart corrections tailored to your vessel’s chart inventory. Chartlets are exact scale detailed chart decals, and …

Get Critical Chart Updates See the Critical Corrections that NOAA has applied to the area of your OceanGrafix chart. Enter the chart number and print date of your chart below.

Feb 5, 2025 · Once the authorized POD chart is available, it meets federal chart carriage requirements, and should be put into service immediately. It should be updated from the last …

Apr 5, 2019 · Whenever a new area is to be added to a chart or it has to represent an area different from the previous chart, or the depth units shown on previous charts have to be …

There are currently two methods of carrying out electronic chart corrections, either via Weekly Updates, CD or downloaded weekly from a recognized electric chart supplier's data.