Number of tiers

Constitution 1993 (last amended in 2013)

Article 16.1 The Chamber of Deputies shall have 200 Deputies who shall be elected for a term of four years.

ARTICLE 18.1 Elections to the Assembly of Deputies shall be held by secret ballot on the basis of a universal, equal, and direct right to vote, according to the principle of proportional representation.

ACT NO. 247 on Elections to the Parliament of the Czech Republic, and on Amendments of Certain Other Acts (September 27, 1995)

Article 26. For the purpose of elections to the Chamber of Delegates, the territory of the Czech Republic shall be divided into constituencies - electoral regions in which the elections shall be held on the principle of proportional representation.

Article 48. Apportionment of Representative Seats among Electoral Regions

(1) The Central Election Board shall review the reports of regional election boards, and according to the data reported, shall sum up all valid votes cast within all electoral regions for all party/coalition lists of candidates. Such total popular vote shall be divided by the prescribed number of Delegates in the Chamber of Delegates. The figure obtained in the above manner, rounded off to the nearest whole number, shall define [the average proportion of the population in the Czech Republic to be represented by one legislative seat -] the national electoral quota.

(2) The total vote in the electoral region shall then be divided by the national electoral quota, and as many legislative seats shall be allocated to the electoral region as many times the full national electoral quota is contained in the region's total vote count. The same procedure shall be repeated until legislative seats have been allocated for all electoral regions.

(3) If after the above procedure, several seats in the Chamber of Delegates remain to be apportioned, the seats that were not allocated by full national electoral quotas shall subsequently be allocated to electoral regions with the largest remainder of votes after the quota has been subtracted from each region's total vote for each seat it was allocated. The legislative seats shall be allocated sequentially to the electoral regions with the largest remainder until all the seats in the Chamber of Delegates have been apportioned among electoral regions. Should there be several electoral regions with equally highest remainder, lots shall be drawn to determine the winning region.