What action does the Bravo Flag signify?

The Bravo Flag, or the "B" flag in the International Code of Signals, signifies "Dangerous Cargo." When this flag is displayed, it alerts other ships and personnel about the presence of hazardous materials being loaded, unloaded, or transported on board. This warning is crucial for ensuring safety, as dangerous cargo can include flammable, explosive, toxic, or radioactive materials, which pose significant risks during maritime operations. The proper acknowledgment of the Bravo Flag helps to prevent accidents and ensures that adequate safety measures are in place for personnel and vessels in the vicinity.