A trade requiring supervision according to § 38 GewO (also called trust trade) is, for example, motor vehicle trade, travel agencies, key services, trade in high-quality second-hand goods and consumer goods, marriage brokerage, trade in precious ...
If you want to take part in an explosives law specialist course, you need a clearance certificate.
If you run a prostitution business and employ other people, you must register them.
To take part in a course under the Explosives Act, you need a clearance certificate from the responsible authority.
Your tax submission and payment behavior will be attested to you on the basis of the certificate in tax matters.