The power to review decisions would allow the First-tier Tribunal Wales to rectify any obvious errors of law or procedure, it would not seek to alter the grounds of appeal.
Byddai’r pŵer i adolygu penderfyniadau yn galluogi Tribiwnlys Haen Gyntaf Cymru i gywiro unrhyw wallau amlwg mewn cyfraith neu weithdrefn, ni fyddai’n ceisio newid seiliau apêl.