Case files for those complaints investigated and resolved by the Welsh Government will be retained for a maximum of 3 years after your case has been fully resolved.
Bydd ffeiliau achos ar gyfer y cwynion hynny yr ymchwiliwyd iddynt ac a gafodd eu datrys gan Llywodraeth Cymru yn cael eu cadw am t dair blynedd ar y mwyaf ar ôl i’ch achos gael ei ddatrys yn llawn.