Data is collated into an electronic return and submitted to the Welsh Government through DEWi, a secure online data transfer system developed by the Welsh Government.
Cesglir data mewn ffurflen electronig a'u cyflwyno i Lywodraeth Cymru trwy DEWi, system drosglwyddo data ar-lein diogel a ddatblygwyd gan Lywodraeth Cymru.