Rhoddwyd cydsyniad i Lywodraeth y DU wneud yr offeryn hwn mewn perthynas â Chymru ac ar ei rhan, gan fod yr OS yn ymwneud â maes datganoledig, ond, mae'r OS yn gweithredu ar draws Prydain Fawr ac yn cael effaith ar y cyfyngiadau o ran mewnforio planhigion a chynhyrchion planhigion i Brydain Fawr. Gallai cyflwyno rheoliadau ar wahân yng Nghymru a Lloegr greu baich ychwanegol ar yr Asiantaeth Iechyd Anifeiliaid a Phlanhigion (APHA), busnesau, masnachwyr a thyfwyr. Mae rheoleiddio ar lefel Prydain Fawr yn sicrhau llyfr statud cydlynol a chyson, gyda'r rheoliadau ar gael mewn un offeryn heb unrhyw risg o wahaniaeth deddfwriaethol ym Mhrydain Fawr.
Consent has been given for the UK Government to make this instrument in relation to, and on behalf of, Wales as the SI relates to a devolved area, however, the SI operates GB-wide and has effect on the restrictions regarding the importation of plants and plant products into GB. Introducing separate regulations in Wales and England may cause additional burden on the Animal and Plant Health Agency (APHA), business, traders and growers. Regulating on a GB-wide basis ensures a coherent and consistent statute book with the regulations being accessible in a single instrument with no risk of legislative divergence in GB.