Pa gorff democrataidd sy'n goruchwylio gwaith grŵp llywio rhanddeiliaid M48 Pont Hafren?
Wedi'i ateb gan Ysgrifennydd y Cabinet dros Drafnidiaeth a Gogledd Cymru
| Wedi'i ateb ar 22/07/2025
The M48 Severn Bridge is the responsibility of National Highways therefore the Department for Transport in the UK Government has responsibility for overseeing their work.