All maintained schools are required to submit the school data return element and all local authorities are required to return the pay, HR and absence element for school staff on their payroll.
Nid oes unrhyw gyfrifoldeb ar yr ALl i ddychwelyd y datganiad data cyflog, adnoddau dynol ac absenoldeb ar gyfer ysgolion sydd wedi dewis peidio â chael eu rheoli gan lywodraeth leol.