3.—(1) The Preserved County of Clwyd comprises the areas of the counties and county boroughs of Denbighshire, Flintshire, Wrexham and Conwy.
(2) The Preserved County of Gwynedd comprises the areas of the counties of Anglesey and Gwynedd.
(3) The Preserved County of Gwent comprises the areas of the counties and county boroughs of Monmouthshire, Blaenau Gwent, Torfaen, Newport and Caerphilly.
(4) The Preserved County of Mid Glamorgan comprises the areas of the county boroughs of Bridgend, Merthyr Tydfil and Rhondda Cynon Taff.
(5) The Preserved County of South Glamorgan comprises the areas of the county and county boroughs of Cardiff and The Vale of Glamorgan.