Fel rhan o'r Cytundeb Rhynglywodraethol gyda Llywodraeth y DU mewn perthynas â Deddf yr Undeb Ewropeaidd (Ymadael), dechreuodd Llywodraeth Cymru gymryd camau i sicrhau y byddai'r Ddeddf Cyfraith sy'n Deillio o'r UE yn cael ei dileu drwy osod rheoliadau drafft dan adran 22 o'r Ddeddf.
As part of the Intergovernmental Agreement reached with the UK Government in relation to the European Union (Withdrawal) Act, the Welsh Government initiated steps to secure the repeal of the LDEU Act by laying draft regulations under section 22 of the Act.