The Local Democracy and Boundary Commission for Wales (Welsh: Comisiwn Ffiniau a Democratiaeth Leol Cymru) is a Welsh Government sponsored body, responsible for defining borders for local elections and government in Wales. Electoral arrangements in six authorities were reviewed after the penultimate round of Welsh local elections in 1999, and the changes were implemented at the elections on 10 June 2004. In 2002, the commission also reviewed and amended some of the boundaries of the preserved counties of Wales.