The 1999 Catalan regional election was held on Sunday, 17 October 1999, to elect the 6th Parliament of the autonomous community of Catalonia. All 135 seats in the Parliament were up for election. The election saw the Socialists' Party of Catalonia (PSC) under former Mayor of Barcelona Pasqual Maragall achieve a razor-thin victory in the popular vote, the first time since 1980 that the Convergence and Union (CiU) alliance of incumbent president Jordi Pujol did not come out in top of voters' preferences. However, as a result of the electoral system, CiU was able to retain first place in terms of seats, and together with the conservative People's Party (PP), secure a small majority of 68 seats in the Parliament of Catalonia, compared to the 67 garnered by the combined total of all three left-from-centre parties: the PSC, Republican Left of Catalonia (ERC) and Initiative for Catalonia–Greens (IC–V). The latter had recently split from its national referent, United Left (IU), which ahead of the election established a new regional branch, United and Alternative Left (EUiA), which failed to secure any parliamentary representation. Overview Electoral system The Parliament of Catalonia was the devolved, unicameral legislature of the autonomous community of Catalonia, having legislative power in regional matters as defined by the Spanish Constitution of 1978 and the regional Statute of Autonomy, as well as the ability to vote confidence in or withdraw it from a regional president. Transitory Provision Fourth of the Statute established a specific electoral procedure for elections to the Parliament of Catalonia, of application for as long as a specific law regulating the procedures for regional elections was not approved, to be supplemented by the provisions within the Organic Law of General Electoral Regime. Voting for the Parliament was on the basis of universal suffrage, which comprised all nationals over 18 years of age, registered in Catalonia and in full enjoyment of their political rights. The 135 members of the Parliament of Catalonia were elected using the D'Hondt method and a closed list proportional representation, with an electoral threshold of three percent of valid votes—which included blank ballots—being applied in each constituency. Seats were allocated to constituencies, corresponding to the provinces of Barcelona, Girona, Lleida and Tarragona, with each being allocated a fixed number of seats. The use of the D'Hondt method might result in a higher effective threshold, depending on the district magnitude. Election date The term