On this page you will find further information.
The Federal Institute for Materials Research and Testing (BAM) is the notified body of the Federal Republic of Germany. On the pages of the Department 2.5 you will find all public announcements concerning the approval of pyrotechnic articles.
The Explosives Act and the most important regulations can be found here
The Homepage from Dipl.Ing. Rolf Ruckdeschel has very good detailed information about safety devices in vehicles. If you are looking for experienced airbag developers, you will find it at Stigro.