Where the adoption agency is not able to trace a person from the records it holds, it may seek information held by Registrar General on the Adoption Contact Register.
Pan na all yr asiantaeth fabwysiadu olrhain person o'r cofnodion sydd ganddi, gall ofyn am wybodaeth a gedwir gan y Cofrestrydd Cyffredinol ar y Gofrestr Cyswllt Mabwysiadu.