You must register your dog in the dog register in Hamburg. The dog tax will then be recorded automatically. You can also register your dog with the relevant authority for dog tax, especially if you wish to apply for exemptions or reductions
As the person responsible for radiation protection in a company, you are obliged to inform the responsible authority about the appointment and termination of radiation protection officers.
When you register or deregister your residence, you will receive an official registration confirmation as proof. Further information can be found here.