While companies are responsible for purchasing and deploying the visual (lights, buoys and daymarkers) and audible (fog horns) aids to navigation (AtoNs), their proposed safeguards must first gain U.S. Coast Guard approval through a Private Aids to Navigation Application (CG #4143) or a buoy-specific application (CG#2554). These regulations ensure every navigational aid in use meets appropriate safety standards for the open water.
Guidelines for Maritime Aids to Navigation
