In Mexico, some municipalities and Mexico City are divided into “boroughs” for administrative purposes. Boroughs are known as delegaciones, or in the case of Mexico City, demarcaciones territoriales. Boroughs can either be second-level semi-autonomous administrative divisions or third-level non-autonomous administrative divisions. The limits, nature and competencies of boroughs are usually described in the constitutions of the states they are part of, or in the laws enacted by the municipality itself, and may differ from municipality to municipality.