SCHEDULE STATISTICAL SUB-AREAS AND DIVISIONS OF THE INTERNATIONAL COUNCIL FOR THE EXPLORATION OF THE SEA
Article 2(1)

ICES statistical division VII a (Irish Sea)
The waters bounded by a line beginning at a point on the west coast of Scotland at 55° 00− latitude; then due west to the coast of Northern Ireland; then in a southerly direction along the coasts of Northern Ireland and Ireland to a point on the south-east cost of Ireland at 52° 00− north latitude; then due east to the coast of Wales; then in a north-easterly and northerly direction along the coasts of Wales, England and Scotland to the point of beginning.

ICES statistical division VII d (Eastern Channel)
The waters bounded by a line beginning at a point on the west coast of France at 51° 00− north latitude; then due west to the coast of England; then in a westerly direction along the south coast of England to 2° 00− west longitude; then south to the coast of France at Cap de la Hague; then in a north-easterly direction along the coast of France to the point of beginning.