You must apply for the public appointment with the competent body.
They will check whether you fulfil the requirements based on the information you provide and the documents you submit. If this is the case, you will be appointed and sworn in to fulfil your duties conscientiously, without instructions and impartially. You will receive a certificate of public appointment.
Note: In order to verify the required expertise, the competent body may present you to a neutral and expert committee which, after an interview or an examination of your knowledge, will issue a vote in writing on the existence of the special expertise. This usually takes place at the relevant Chamber of Industry and Commerce.
Your public appointment is valid for the whole of Germany. The competent authority can either issue it generally or restrict it to certain types of auctions (e.g. works of art or carpets), provided there is a need to organise public auctions for these.