The heads of state for the 9 monarchical states are their respective monarchs (7 out of them Sultans). The 9 states are Johor, Negeri Sembilan, Pahang, Perak, Kedah, Terengganu, Kelantan and Perlis. The heads of state forPenang, Malacca, Sabah and Sarawak are their respective Yang di-Pertua Negeri sometimes referred to as Governor. All 13 heads of state forms theConference of Rulers but only the 9 monarchs can become the Yang di-Pertuan Agong (King of Malaysia). The role of the heads of state are largely ceremonial other than the power to appoint the chief minister or menteri besar (according to the state constitution) and to withhold consent to dissolve the state legislature. The heads of state are required by convention to give their approval or assent to every legislation passed by the state legislature.[citation neede