The 1987 Constitution allows for the creation of autonomous regions in the Cordillera Central of Luzon and in the Muslim-majority areas of Mindanao. However, only the Bangsamoro Autonomous Region in Muslim Mindanao and its predecessor, the Autonomous Region in Muslim Mindanao, have been approved by voters in plebiscites held in 1989, 2001 and 2019. Voters in the Cordilleras rejected autonomy in 1990 and 1998; hence the Cordillera Administrative Region remains as a regular administrative region with no delegated powers or responsibilities.