City government takes the form of a mayor-council system and is regulated under the Law of Municipalities that came into effect on January 1, 1991.  The Central District Municipal Government (''Alcaldía Municipal del Distrito Central'' or AMDC) is the city's governing authority.  As established by city governing law, AMDC is structured as a municipal corporation, which is the deliberative-legislative body, voter-elected, and highest authority within the municipality.