Saesneg: The M4 Motorway (Slip Roads between Junction 38 (Margam) and Junction 43 (Llandarcy)) (Temporary Prohibition of Vehicles) Order 2011
Cymraeg: Gorchymyn Traffordd yr M4 (Slipffyrdd rhwng Cyffordd 38 (Margam) a Chyffordd 43 (Llandarsi)) (Gwahardd Cerbydau Dros Dro) 2011