In Wales these plans will be developed on a regional basis, meaning that for South East Wales a plan must be developed for the Cardiff Capital Region footprint.
Yng Nghymru, caiff y cynlluniau hyn eu datblygu ar sail ranbarthol, sy'n golygu, ar gyfer De-ddwyrain Cymru, fod angen datblygu cynllun ar gyfer ôl troed Prifddinas-Ranbarth Caerdydd.