Notice: Maritime Exclusion Zone (Three-Day Security Restrictions)

30 October 2026

Maritime users are advised that temporary security restrictions will apply across designated areas of the River Liffey and Dublin Bay from 00:01 on Wednesday, 11th November until 23:59 on Friday, 13th November 2026, as part of a security operation requested by An Garda Síochána.

The measures, introduced under Section 38 of the Maritime Safety Act 2005, as amended, establish an inner exclusion zone along the River Liffey and a much larger outer area extending into Dublin Bay.

The Maritime Exclusion Zone will apply to the following defined areas;
1. Inner Area from Seán Heuston Bridge to Thomas Clarke (East Link) Bridge, including adjoining navigable waters and the River Dodder from its confluence with the River Liffey to Ringsend  Bridge.  Entry to the Inner Area is prohibited unless specifically authorised in advance by An Garda  Síochána. Commercial maritime activity may be authorised to transit the Inner Area, while leisure activity may only transit with the express permission of An Garda Síochána. Requests for authorisation to enter or transit the Inner Area should be directed to An Garda Síochána at  Ags.Epc2026@garda.ie.

During the activation period, any vessel intending to enter the Inner Area must contact “Naval  Service Picket Ship” on VHF Channel 67 prior to entering the area and comply with all directions issued.

2. Outer Area extending from Thomas Clarke (East Link) Bridge to the outer limits of Dublin Bay, defined by the Dublin Port Pilotage Area boundary at 6° West Longitude, including all navigable waters within Dublin Bay and the Lower River Liffey. Normal commercial shipping movements may continue within the Outer Area. Vessels may be
subject to additional controls and must comply with directions issued by the relevant authorities.

The full notice can be found here.