A wnaiff y Gweinidog Cabinet gadarnhau a yw unrhyw gynllun i adeiladu ffordd liniaru'r M4 wedi'i ddiystyru?
Wedi'i ateb gan Dirprwy Weinidog dros Drafnidiaeth | Wedi'i ateb ar 21/07/2026
As the Member will be aware from my statement on 9th June, this government has been clear that the M4 relief road is not being taken forward.