Different areas are managed by different authorities. The following is the list of Free Ports in Germany and their governing body:
Free Port of Bremerhaven – Customs Office of Bremerhaven, under the Main Customs Office of Bremen.
Free Port of Cuxhaven – Customs Office of Cuxhaven, under the Main Customs Office of Oldenburg.
Free Port of Duisburg – Customs Office of Ruhrort, under the Main Customs Office of Duisburg.