From Cubalex – January 2019
Before calling elections, the Municipal Assemblies of Peoples’ Power (AMPP), divide their areas up into electoral constituencies, on the basis of the number of inhabitants in the Council area, and, after they have constituted them, present a proposal to the Municipal Electoral Commission, which, in turn, submits them to the respective Provincial Electoral Commission for approval. The law does not lay down a time period in which to do this.
Note: This should happen before the Electoral Constituency Commissions are constituted, which, according to the official media, should happen before January 13th, 2019, the date upon which all the national electoral entities should be in place. The logic is that, in order to constitute the Electoral Constituency Commissions, the electoral constituencies should already have been determined. The law is silent on this matter.
In view of the haste with which this process has been carried out, it must be assumed that the constituencies approved for the previous elections in 2017 and 2018 will be used. At that point, they created 12,515 constituencies throughout the country, and 24,361 electoral colleges. 8% of the electoral colleges were in private houses.
The Provincial Electoral Commission decides the proposals for electoral constituencies submitted to them by the Municipal Electoral Commissions.
Note: This should happen before the Electoral Constituency Commissions are constituted, which, according to the official media, should happen before January 13th, 2019. It is estimated that at least 12,515 electoral constituencies will be created across the whole country, based upon the official data on the elections which took place in 2017 and 2018. 
The Municipal Electoral Commission designates the members of the Electoral Constituency Commissions in the time period established by the Council of State (between the 4th and 13th of January, 2019) in order to establish the subordinate electoral organs.
 Article 12 and Subsection b) Article 26 of Law No. 72 of 29th of October 1992, “Electoral Law”.
 Subsection f) Article 24 of Law No. 72 of 29th October, 1992, “Electoral Law”.
 Subsection c) Article 16, Article 21, Subsections c) and ch) of Article 26, Article 29 and Subsection ñ) Article 30 of Law No. 72 of 29th October, 1992, “Electoral Law”
Translated by GH