Pet owners (or those travelling with a pet animal) will be required to make a declaration that the pet animal will not subsequently be moved into the EU.
Bydd gofyn i berchennog anifail anwes (neu'r sawl sy'n teithio gydag anifail anwes) wneud datganiad na fydd yr anifail anwes yn cael ei symud i'r UE wedi hynny.