# Entry in a register
Have you registered yet? In many cases it is important to enter yourself or your business into a register. Do you want to be entered into a register? Here you will find all the relevant information.To Services
Information about Rights & Duties
Do you have cause for complaint after a train, bus or ship journey? Then you can contact the Federal Railway Authority (EBA).
When you start a business activity, you will be given a business identification number (W-IdNr.).
If you wish to participate in aeronautical and aeronautical navigation radio, the BNetzA will assign you the callsign with the Aircraft Station Licence on application. In addition, you must notify changes, for example, the holder address or the radio technical equipment.
As an employer, you must register your employees who are subject to social insurance contributions. You will need a company number for this.
You would like to offer goods for immediate sale occasionally at trade fairs, exhibitions, public festivals or for a special occasion? Then you need a permit for this from the competent body and do not need a travel trade card.