O ran llif data, cytunwyd i sefydlu 'dull pontio' tra bod yr UE yn ystyried digonolrwydd data. Mae hyn yn dileu'r bygythiad uniongyrchol i lif data rhwng y DU a'r UE, ond mae risgiau'n parhau y mae angen i bob sector o'r economi liniaru yn eu herbyn ac rydym yn parhau i gyfathrebu canllawiau arfer gorau ar y mater hwn.​​​​​​​Gwasanaethau cyhoeddus a chymunedau– gan gynnwys dinasyddion yr UE, gwydnwch data gwasanaethau cyhoeddus, cyngor ar bopeth a thrafnidiaeth a theithio
On data flows there has been agreement for a ‘bridging mechanism’ to be in place while the EU considers the issue of data adequacy. This removes the immediate threat to the flow of data between the UK and the EU, but risks remain which all sectors of the economy need to mitigate against and we continue to communicate best practice guidance on this issue.Public services and communities– including EU citizens, public service data resilience, citizens’ advice and transport and travel