Article 5
(1)
The Gwent commission area shall consist of
(a)
the preserved county of Gwent, together with
(b)
so much of the county borough of Caerphilly as falls within the preserved county of Mid Glamorgan.
(2)
The South Wales commission area shall consist of the preserved counties of Mid Glamorgan and South Glamorgan, excluding so much of the county borough of Caerphilly as falls within the preserved county of Mid Glamorgan.