There will be costs in terms of staff time for health boards to provide data to local authorities and for local authorities to cross reference this data against children already known to them.
Bydd costau o ran amser staff i fyrddau iechyd i ddarparu data i awdurdodau lleol, ac i awdurdodau lleol i groesgyfeirio’r data hyn yn erbyn plant sydd eisoes yn hysbys iddynt.