 By virtue of being classified as a highly urbanized city on 7 December 1983, Olongapo was granted separate representation for the first time in the Regular Batasang Pambansa, electing one representative, at large, in 1984.Under the new Constitution which was proclaimed on 11 February 1987, the city was once again grouped with Zambales and formed part of its first congressional district.The district elected its member to the restored House of Representatives starting that same year.