There is no legal requirement to take part in a formal training course or get a qualification, although many businesses may want their staff to do so.
Nid oes unrhyw ofyniad cyfreithiol i gymryd rhan mewn cwrs hyfforddi ffurfiol neu gael cymhwyster, er hyn, efallai y bydd llawer o fusnesau am i'w staff wneud hynny.