The following aids to navigation are provided and maintained by the Commissioners of Irish Lights:

Lighthouses (automated)	80
Lightfloats (automated lightvessels)	1
Large Automatic Navigation Buoys (Lanbys)	2
Large Automatic Navigation Buoys (Lanbys)	140
Hauling off/Mooring Buoys	4
Lighted Beacons	5
Unlighted Beacons	40

Additional Equipment:

DGPS transmission stations at lighthouses	3
Racons (radar transponder beacons) on lighthouses	14
Racons on lightfloats	1
Racons on lanbys	2
Racons on buoys	5
Radar target enhancers on buoys	3
AIS on buoys	12
Fog signals on lighthouses	10
Fog signals on lightfloats	1
Fog signals on lanbys	2

(Projected numbers for January 2009)

The Commissioners of Irish Lights are also charged with statutory responsibility for the superintendence and management of all aids to navigation provided by Local Lighthouse Authorities and other providers in ports, estuaries, and coastal areas. In addition to harbour and coastal aids, these include aids marking offshore structures such as production or exploration platforms; alternative energy sites including wind parks and tidal, current or wave energy devices; and aquaculture sites.

On 1 December 2008 there were 4,086 recorded local aids to navigation. Of these some 2,057 are associated with aquaculture developments including recommended aquaculture aids to navigation on sites not yet established. The remaining 2,029 aids comprise 16 lighthouses, 912 lighted beacons, 529 lighted buoys, 2 racons, 2 fog signals and a range of unlighted aids of varying kinds. An increase in applications for Statutory Sanction in 2008 has been recorded, both for newly established aids to navigation as well as the upgrade of some more traditional aids.

Local lighted aids to navigation and other seamarks of higher importance are inspected annually. All remaining local aids are inspected every two years (apart from unpainted stone beacons which are considered to be of lower risk, and are inspected every three years).

The Commissioners' policy is to maintain a high level of local aid to navigation superintendence and management through a combined audit and inspection regime and consultation with Local Lighthouse Authorities.