The area covered by the Outer Hebrides Regional Inshore Fisheries Group covers inshore waters from baselines between the Butt of Lewis and Barra Head. The sea out from St Kilda, the Flannan Isles, North Rona and Sula Sgeir are also included within the Group's geographical scope. The boundaries with neighbouring Regional Inshore Fisheries Groups delineate a similar sea area to that proposed for the Western Isles Marine Region.