Mae Llywodraeth Cymru wedi ymrwymo i wneud popeth o fewn ein gallu i gyflawni hyn, ond Llywodraeth y DU sy'n gyfrifol am y rhan fwyaf o'r systemau o dan sylw. Mae angen cefnogaeth a hyfforddiant manwl i sicrhau bod busnesau a chludwyr yn hyderus wrth ddefnyddio prosesau newydd ar y ffin a chadw nwyddau'n symud mor effeithlon ac effeithiol â phosibl.​​​​​​​Adnoddau a chyfrifoldebau Llywodraeth Cymru– gan gynnwys negodiadau gyda Thrysorlys EM ar gyllid, Cronfa Ffyniant a Rennir y DU a goblygiadau ar Ddeddfwriaeth a Swyddogaethau Newydd.
The Welsh Government is committed to doing everything we can to achieve this, but the bulk of the systems involved are the responsibility of the UK Government, and we need to see detailed support and training to make sure businesses and hauliers are confident using new border processes to keep goods moving as efficiently and effectively as possible.​​​​​​​Welsh Government resourcing and responsibilities– including negotiations with HM Treasury on funding, the UK Shared Prosperity Fund (SPF) and implications on Legislation and New Functions.