To whom should you report chart deficiencies?

Reporting chart deficiencies is an important step in ensuring the accuracy and reliability of navigational charts used by mariners. The correct authority to address such issues is the National Oceanic and Atmospheric Administration (NOAA) in Rockville, MD. NOAA is responsible for the production and maintenance of nautical charts in the United States. When deficiencies such as outdated information, incorrect depths, or hazards to navigation are found, reporting them to NOAA helps facilitate the updating and correction of charts, which can ultimately enhance navigational safety.

The other options, while involved in various aspects of maritime safety and navigation, do not have the direct responsibility for chart maintenance. The Coast Guard focuses more on enforcement, safety regulations, and search and rescue activities. A local harbor master manages operations and safety within specific harbor areas but does not have the capability to make changes to nautical charts. The National Weather Service primarily deals with weather-related information rather than charting, so they would not be the correct point of contact for chart deficiencies.