held every four years in accordance with Article 69 of the Basic Law of HKSAR. The most recent election was held on 19 December 2021. Electoral system Each candidate running for Legislative elections is to be nominated by 10–20 members of the Election Committee, before their eligibility is reviewed and confirmed by the Candidate Eligibility Review Committee of the HKSAR according to opinions issued by the Committee for Safeguarding National Security of the Hong Kong Special Administrative Region: Geographical Constituencies 20 seats of the Legislative Council are returned by geographical constituencies (GC) through single non-transferable vote with a district magnitude of 2 ("binomial system"). The binomial system was instituted by the Standing Committee of the National People's Congress in its amendment to Annex 2 of the Basic Law on 30 March 2021. Geographical constituencies were first introduced in Hong Kong's first legislative election with direct elections in 1991. The electoral system and boundaries of GCs have since changed: Functional Constituencies Under the 2021 Hong Kong electoral changes, 28 functional constituencies (FC) return 30 members. The Labour Functional Constituency returns three members by plurality block voting. The other FCs return one member each with first-past-the-post voting. The 2021 electoral reform saw the dissolution of District Council (First) and District Council (Second) FCs. 3 existing FCs were reconstituted: the Information Technology FC reorganised as the Technology & Innovation FC; the Medical FC and Health Services FC combined to form the Medical and Health Services FC. 2 new FCs were established, namely the Commercial (Third) and the HKSAR Deputies to the National People's Congress, HKSAR Members of the National Committee of the Chinese People's Political Consultative Conference, and Representatives of Relevant National Organisations FCs. Functional constituencies are now principally elected by body votes; the number of FCs with individual votes were reduced, together with elimination of mixed individual and body voting systems. Election Committee Constituency The Election Committee constituency was one of the three constituencies designed in the Basic Law of Hong Kong next to the directly elected geographical constituencies and the indirectly elected functional constituencies for the first and second-term Legislative Council fin the early SAR period. With the last British Governor Chris Patten's electoral reform, the ECC was composed of all elected District Board members who had been elected in 1994. The Single Transferable Vote system was used in the 1995 election. After the handover of Hong Kong, the ECC was