An Bord Pleanála has ruled that Shell requires planning permission for three aspects of work it is already conducting in relation to the Corrib gas field.
An Taisce had raised 14 questions in relation to different aspects of the work and today An Bord Pleanála ruled that three issues did require planning permission.
The ruling means that the company must stop work in these areas until permission has been secured.
The areas include work widening an entrance to a landfill and the construction of a road through a protected habitat, as well as work on a station.
