Once we receive a request, and if we need it, clarification to enable us to search for the information that has been requested, we are required to provide a response within 20 working days.
Ar ôl inni gael cais ac, os bydd angen, rhagor o eglurhad i'n galluogi i chwilio am y wybodaeth y gofynnwyd amdani, mae'n ofynnol inni ymateb cyn pen 20 niwrnod gwaith.