Act 2013 (“the 2013 Act”) requires the Democracy and Boundary Commission Cymru (“the Commission”) to review the electoral arrangements for each principal area in Wales at least once every 12 years.
Mae Adran 29 Deddf 2013 yn cyflwyno’r ddyletswydd ar y Comisiwn i adolygu’r trefniadau etholiadol ar gyfer pob prif ardal o leiaf unwaith ym mhob cyfnod adolygu o 12 mlynedd.