To fulfill this statutory duty, Trinity House works with local ports and harbours to inspect and audit over 11,000 local aids to navigation annually.

New Local AtoN application

To request a new aid to navigation use our application form:

Local aid to navigation application


Inspection and Audit of Local Aids to Navigation and Offshore Structures Reports


Inspection and Audit of Local AtoN and Offshore Structures 2024-25


Inspection and Audit of Local AtoN and Offshore Structures 2025-26