International Code of Signals

The International Code of Signals is an essential maritime reference for ship masters, officers, deck crew, and maritime enthusiasts. It provides a standardized system of communication between vessels and between ship and shore, using flag signals, Morse code, semaphore, and radiotelephony. Whether you are navigating international waters, responding to distress calls, or coordinating port operations, this code ensures clear and unambiguous communication across language barriers.

This comprehensive publication contains the full set of alphabetical and numerical signal flags, international single-letter and two-letter signals, as well as medical and distress signaling procedures. It also includes the latest IMO-supported updates to align with current maritime practices. Compact and durable, it is designed for use on the bridge or in the chart room, making it a reliable companion for safe navigation worldwide.