The Senedd has legislated to allow local authorities in Wales to choose their electoral system, between First Past the Post (FPTP) or Single Transferable Vote (STV).
Mae’r Senedd wedi deddfu i ganiatáu i awdurdodau lleol yng Nghymru ddewis eu system etholiadol, rhwng y system cyntaf i’r felin neu’r system pleidlais sengl drosglwyddadwy.