What flag is hoisted by vessels when transferring fuel or explosives?

The Bravo flag is used to communicate a specific warning at sea, indicating that a vessel is transferring, storing, or handling flammable materials such as fuel or explosives. This flag serves as a critical visual signal to nearby vessels and personnel, ensuring they maintain a safe distance to prevent accidents or potential disasters. The use of the Bravo flag is vital for maintaining safety standards and maritime regulations during hazardous operations. Its distinct design makes it easily recognizable, reinforcing the importance of alerting others about the presence of dangerous materials on board.