by the parliament. The Bangsamoro Autonomous Region's predecessor, the Autonomous Region in Muslim Mindanao (1990–2019), had a Regional Legislative Assembly (RLA) which elected three members from each of its eight assembly districts. These assembly districts were coterminous with the existing congressional districts of the time, except that the assembly districts excluded territories that are not under the jurisdiction of the ARMM (i.e., Isabela City excluded from the assembly district of Basilan; Cotabato City excluded from the first assembly district of Maguindanao). Before voting for inclusion into the ARMM in 2001, Marawi City was also excluded from the first assembly district of Lanao del Sur. Local The electoral constituencies for the election of territory-based members of the Sangguniang Panlalawigan of all 81 provinces, the Sangguniang Panlungsod of 26 cities and the Sangguniang Bayan of Pateros, are more precisely sanggunian districts. Sangguniang Panlalawigan districts: COMELEC divides provinces that comprise a lone congressional district into two SP districts. In provinces that are already divided into more than one congressional district, SP districts mostly follow the same boundaries, with the main exceptions being the exclusion of independent cities. SP districts in Bulacan and Laguna also include the cities of San Jose del Monte (Bulacan), and Biñan, Calamba and Santa Rosa (Laguna) in their former congressional districts. Sangguniang Panlalawigan districts are sometimes called provincial board districts. Sangguniang Panlungsod districts: The election of regular SP members in 26 cities is through territory-based districts that encompass only portions of each city. The SP district boundaries in 10 cities are coterminous with congressional district boundaries; the SP districts in Taguig also mostly follow the congressional district boundaries, except that Pateros is factored out. Two cities (Manila and Quezon City) are divided into six SP districts; four (Caloocan, Davao City, Samal and Sorsogon City) into three SP districts; and the remaining 20 into two SP districts. Sangguniang Panlungsod districts are sometimes called councilor districts. Sangguniang Bayan districts: Only the Metro Manila municipality of Pateros is divided into two SB districts for electing regular members to the Sangguniang Bayan. The Sangguniang Bayan districts of Pateros are sometimes called councilor districts. Special-purpose districts The various executive departments has also divided the country into their respective districts. The Department of Public Works and Highways, Department of Education, and the Bureau of Internal Revenue, for example, divide the country into "engineering," "school," and "revenue" districts, respectively. Summary The following table summarizes the number