The Radio Navigational Aids (Pub 117) publication contains a detailed list of selected worldwide radio stations that provide services to the mariner. The publication is divided into chapters according to the nature of the service provided by the radio stations. The services include RDF and Radar Stations; stations broadcasting navigational warnings, time signals or medical advice; communication traffic for distress, emergency and safety including GMDSS; and long range navigational aids. It also contains chapters describing procedures of the AMVER system, and the interim emergency procedures and communication instructions to be followed by U.S. merchant vessels in times of crisis.

With this publication, I present the roughly poor GMDSS situation in the waters around Africa, along with some of its political aspects and connexions.

The Code of Federal Regulations Title 33 contains the codified United States Federal laws and regulations that are in effect as of the date of the publication pertaining to navigation, flood control, and water resources for the navigable waters in and around the United States, including the Everglades. Covers drinking water policies, aquatic plant control, dumping, dredging, wreck removal, and Federal involvement in the engineering, maintenance and flood control of seaways, levees, canals, dams, rivers, lakes and so on.

This accessible reference presents the evolution of concepts of time and methods of time keeping, for historians, scientists, engineers, and educators. The second edition has been updated throughout to describe twentieth- and twenty-first-century advances, progress in devices, time and cosmology, the redefinition of SI units, and the future of UTC.

Special edition of the Federal Register, containing a codification of documents of general applicability and future effect ... with ancillaries.