In addition, the City of Brussels is also divided in four sections that correspond to the communes that existed before their merger in 1921.
In addition, there is the term ancienne commune (former municipality), which has no official existence.
However, the Belgian Constitution provides the possibility of implementing districts for any municipality with at least 100,000 inhabitants, giving de facto political and administrative jurisdiction to the sections.
Only the municipality of Antwerp has implemented ten districts, Belgium's lowest level of administration.
[3] Deelgemeenten had their own mayor, the deelgemeentevoorzitter, their own aldermen, deelgemeentewethouders, and their own elected assembly, the deelgemeenteraad.