# Certifying your qualifications and specialised skills
In the interest of protecting the public and ensuring high quality standards, before engaging in certain professional activities you must show evidence that you hold the necessary skills and specialist knowledge. If your profession is one of those subject to such requirements, then you are in the right place.To Services
Information about Rights & Duties
If you need to prove whether you have a criminal record or not, you can apply for the simple certificate of good conduct, the extended certificate of good conduct or the certificate of good conduct for submission to an authority.
If you are working or employed in the food sector for the first time, you will need a certificate from the public health department confirming that you have been instructed in infection control.
Do you have cause for complaint after a train, bus or ship journey? Then you can contact the Federal Railway Authority (EBA).
If you are interested in working in an academic or non-academic health profession abroad, you will need a Certificate of good standing (Certificate of good standing).
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.
A personal identification number (SSR number) is required for entries in the Radiation Protection Register (SSR). You must apply for this number at the Federal Office for Radiation Protection.