parhau i gael mynediad llawn a dirwystr at y farchnad sengl a chymryd rhan mewn undeb tollausystem fudo newydd sy'n cysylltu mudo yn agosach at gyflogaethsicrhau na fydd Cymru'n colli ceiniog o gyllid o ganlyniad i Brexit - addewid a wnaed yn ystod ymgyrch y refferendwmperthynas gyfansoddiadol sylfaenol wahanol rhwng y llywodraethau datganoledig a Llywodraeth y DU, ar sail parch o'r ddwy ochrcynnal mesurau diogelu cymdeithasol ac amgylcheddol presennol, gan gynnwys hawliau gweithwyrcyfnod pontio er mwyn osgoi syrthio 'dros y dibyn’
continued full and unfettered access to the single market and participation in a customs uniona new migration system that links migration more closely to employmentWales not to lose a penny of funding as a result of Brexit – a promise made during the referendum campaigna fundamentally different constitutional relationship between the devolved governments and the UK Government, which is based on mutual respectmaintaining current social and environmental protections, including workers’ rightsa transition period to avoid a ‘cliff edge'.