In § 10 of the Weapons Act, BAM is named as the competent authority for approval of pyrotechnic ammunition. BAM is obliged to keep records of all approvals granted. These records are held as PDF files.
The BAM Federal Institute for Materials Research and Testing meets its publication obligations by providing the data.
Approval of pyrotechnic ammunition
PM I class (in German)
PM II class (in German)
List of conditions (in German)