How Royal Navy hydrographic charts serve mariners worldwide

Does the Royal Navy share its nautical charts with the rest of the world?

Yes. Royal Navy survey charts are made available internationally, although the exact difference between public and service versions remains uncertain.

Royal Navy survey teams produce nautical charts used beyond the fleet. These products are sold or otherwise made available internationally, though the exact difference between outside editions and service charts remains uncertain. Hydrography is a global public-facing naval function as well as a combat-support task. Reliable charts extend naval expertise into merchant navigation and maritime safety.