(a) “Notice to Mariners” is intended to advise mariners of new hydrographic discoveries, changes in channels and navigational aids, and information concerning the safety of navigation. “Notice to Mariners” also contains information—

(1) Useful in updating the latest editions of charts and publications of the National Geospatial-Intelligence Agency, National Ocean Service, U.S. Army Corps of Engineers, and Coast Guard;

(2) Selected from the “Local Notice to Mariners” issued and published by the 1 st, 5 th, 7 th, 8 th, 9 th, 11 th, 13 th, 14 th, and 17 th Coast Guard districts; and

(3) Compiled from foreign notices to mariners, ship reports, and similar cooperating observer reports.

(b) “Notice to Mariners” is published weekly by the National Geospatial-Intelligence Agency. The “Notice to Mariners” is prepared jointly by the:

(1) Coast Guard;

(2) National Ocean Service; and

(3) National Geospatial-Intelligence Agency.

(c) This notice may be accessed through the National Geospatial-Intelligence Agency's Web site (http://msi.nga.mil/NGAPortal/MSI.portal); look for “Notice to Mariners”.