The question is about the authority’s function.
“Einwohnermeldeamt” combines two clues: residents and registration at their place of residence. Local organisation can vary. A citizens’ office may offer several services; after moving, the relevant service is address registration.
Ordinary registration requires proof of identity and confirmation from the housing provider. Berlin’s official instructions expressly state that the tenancy agreement does not replace confirmation of moving in. Online procedures have their own eligibility conditions, which must be checked with the local service.

The other three answers
The other office names refer to different administrative functions.
at the registry office
The civil registry office handles civil-status matters such as marriage. An ordinary change of home is registered with the registration authority.
at the public order office
The public order office is not the office name sought for address registration here. The relevant function is residents’ registration, even if a municipality combines departments.
at the trade office
A trade office deals with business registration. A person’s move calls for address registration, not business registration.
Apply deadlines and documents to the actual situation.
The two-week deadline describes the general case of moving into a home. This guide does not cover every special case in registration law. The responsible registration authority is the right contact for the particular procedure.
Housing-provider confirmation is not itself registration with the authority. It confirms that the person moved in and supports the registration process.
Section 17 · Registration after moving in · Federal Registration Act ↗New home → address registration → registration authority.
Distinguish an address from a marriage or a business. That identifies the correct office among the four answers.
Three words for this question
- der Einzugmoving in
- Actually beginning to live in a home.
- die Meldebehörderegistration authority
- The authority responsible for registering a person’s residence.
- die Wohnungsgeberbestätigunghousing-provider confirmation
- Confirmation that a person has actually moved in.
