Rheoliadau Anifeiliaid, Iechyd Anifeiliaid Dŵr, Rhywogaethau Goresgynnol Estron, Deunydd Lluosogi Planhigion a Hadau (Diwygio) (Ymadael â’r UE) 2020
The Animals, Aquatic Animal Health, Invasive Alien Species, Plant Propagating Material and Seeds (Amendment) (EU Exit) Regulations 2020