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.

To find out more, please download the Guidelines on the provision and maintenance of local aids to navigation [PDF]


Local AtoNs marking offshore renewable energy installations

Download the Provision and Maintenance of Local Aids to Navigation Marking Offshore Renewable Energy Installations document [PDF]


New Local AtoN application

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

Local aid to navigation application