It is not mandatory to submit your certificate of good conduct, but you still have the option to do so.
What is a certificate of good conduct for?
A police clearance certificate serves as proof of whether a person has a criminal record in Germany or not. To build trust between you and your customers right from the start, you can upload this in your profile. Additional documents in your profile are highlighted and often make your profile more attractive to customers. You can obtain the certificate of good conduct from your local registration office. Which registration office is responsible for you depends on where you live. As a rule, every town has several citizens' offices where you can apply for your certificate of good conduct.
If you do not want to go to the citizens' registration office, you can also simply request the certificate online. You can find more information here.
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