This second level administrative division system was created by Law No.
18567 of 13 September 2009 and the first municipalities were created (or converted from Local Boards in the previous system) in March 2010.
Each municipality is governed by a local council, made up of 5 members.
The chairperson of the local council is known as alcalde (mayor) and the remaining members are the councilors.
This regulation provided that in settlements with more than 2,000 inhabitants a municipality was to be created including their surrounding territories, as long as it consisted in a social and cultural unit with their own common interests, that justified the creation of this kind of political entity.