The enactment of Republic Act No. 7926 and its subsequent approval by plebiscite on 8 May 1995 converted Muntinlupa into a highly urbanized city.[2] Per Section 62 of R.A. 7926 Muntinlupa and Las Piñas were to constitute separate congressional districts, with each district electing its separate representative in the 1998 elections. This separation was additionally confirmed in the city charter of Las Piñas (R.A. 8251[3]) which was approved by plebiscite on 26 March 1997.