based in Pagadian; the rest of Basilan is serviced by the BARMM based in Cotabato City. Isabela City, while not independent from its province, is this outside the jurisdiction of the BARMM, the region to which the rest of Basilan belongs. Regions are not the primary subnational administrative divisions of the Philippines, but rather the provinces. Creation of cities Congress is the lone legislative entity that can incorporate cities. Provincial and municipal councils can pass resolutions indicating a desire to have a certain area (usually an already-existing municipality or a cluster of barangays) declared a city after the requirements for becoming a city are met. As per Republic Act No. 9009, these requirements include: locally generated income of at least 100 million (based on constant prices in the year 2000) for the last two consecutive years, as certified by the Department of Finance, AND a population of at least 150,000, as certified by the Philippine Statistics Authority (PSA); OR a contiguous territory of 100 square kilometers, as certified by the Land Management Bureau, with contiguity not being a requisite for areas that are on two or more islands. Members of Congress (usually the involving representative of the congressional district to which the proposed city belongs) then draft the legislation that will convert or create the city. After the bill passes through both the House of Representatives and the Senate and becomes an Act of Congress, the President signs the Act into law. If the Act goes unsigned after 30 days it still becomes law despite the absence of the President's signature. The creation of cities before 1983 was solely at the discretion of the national legislature; there were no requirements for achieving 'city' status other than an approved city charter. No income, population or land area requirements had to be met in order to incorporate cities before Batas Pambansa Bilang 337 (Local Government Code of 1983) became law. This is what made it possible for several current cities such as Tangub or Canlaon to be conferred such a status despite their small population and locally generated income, which do not meet current standards. The relatively low income standard between 1992 and 2001 (which was 20 million) also allowed several municipalities, such as Sipalay and Muñoz, to become cities despite not being able to meet the current 100 million local income standard. Before 1987, many cities were created without any plebiscites