Wikipedia
The Luftfahrt-Bundesamt (LBA, "Federal Aviation Office") is the national civil aviation authority of Germany headquartered in Braunschweig.
It maintains regional offices in Düsseldorf, Frankfurt am Main ( Raunheim), Hamburg, Munich ( Airport), Stuttgart and Berlin and reports directly to the Federal Ministry of Transport, Building and Urban Affairs.
The LBA is responsible for developing and maintaining aviation safety standards, as well as certifying airlines, airports and training devices such a simulators and Flight Training Devices (FTDs). Some of these tasks are fulfilled on behalf of the European Aviation Safety Agency (EASA). Investigation of accidents is not a responsibility of the LBA but of the German Federal Bureau of Aircraft Accident Investigation.