level two, department of magical law enforcement, including the improper use of magic office, auror headquarters and wizengamot administration services.

level three, department of magical accidents and catastrophes, including the accidental magic reversal squad, obliviator headquarters and muggle-worth excuse committee.

level four, department for the regulation and control of magical creatures, incorporating beast, being and spirit divisions, goblin liaison office and pest advisory bureau.

level five, department of international magical co-operation, incorporating the international magical trading standards body, the international magical office of law and the international confederation of wizards, british seats.

level six, department of magical transportation, incorporating the floo network authority, broom regulatory control, portkey office and apparition test centre.

level seven, department of magical games and sports, incorporating the british and irish quidditch league headquarters, official gobstones club and ludicrous patents office.

level nine, department of mysteries, incorporating the death, love, space, though and time chambers and the hall of prophecies.